Collectives™ on Stack Overflow. Though why are you using ob_ functions, you should only need them for the most part if you're building a templating system, and want to render in variables html etc, but then you add the ob_ calls inside the function. Code Examples. . There is some things I dont get about end_clean, clean, get_clean, etc, and therefore, the answer is going to be different and nuanced from the other one. This is what I want to prevent. Now the way how it is set up now works. An optional output_callback function may be specified. ob_get_clean() Returns the current buffer contents, then cleans it out. This will help you better understand. 5. When ob_end_clean is called, it turns off buffering. g. I have tried ob_flush(); and flush() but that doesn't help either. Hot Network Questions Can a device that causes memory loss be created with near-modern technology? Play old saved games on new Xbox S Does a proof by induction have to explicitly refer to the principle of mathematical induction?. 참고 See also header() and setcookie() . That script will not output anything until the end, if 'output_buffering' is set to 'on' in php. . ob_flush. ob_get_clean () exécute successivement ob_get_contents () et ob_end_clean. 5. I almost looked around the internet on how to remove newlines in the strings and that's the common and fastest method to remove the newlines aside from using the slowly preg_replace(). this is how I am inlcuding the html template in my shortcode function. I think that function will be prone to further bugs, therefor using ob_start/ob_end_clean is easier to comprehend. 1. Esta función no destruye el búfer de salida como lo hace ob_end_clean () . 5. What is the benefit of passing a callback to ob_start compared to just processing the result of ob_get_clean()? 0. */ //If you do the same again. Flags can be used to permit or restrict what the buffer is able to do. Teams. This is a bit harsh. También se usa para obtener el búfer de salida nuevamente después de limpiar el búfer. We hope this article has been informative and useful in understanding the ob_start () function in PHP. 0. Follow edited Nov 19, 2013 at 18:14. ob_end_clean (): bool. Return ValuesEverything is enabled, and I believe the problem is that running ob_get_level () at the start of my script produces a level of 1. i was using ob_start but it is a banned function for me. Basically you just wrap your html in ob_start(); this will return the html as a string so you can echo it. Usando ob_start le permite mantener el contenido en un buffer del lado del servidor hasta que esté listo para mostrarlo. This function will send the contents of the output buffer (if any). ob_get_clean ( ): string|false. ob_get_clean does two things: it gets the contents of the buffer as a string, and it cleans out the buffer. Be sure your includes do not already send something to the browser. Its output is rendered to the buffer. If i remove line with ob_get_clean () ab_id_transakce have correct variable from form input. We next include the template file. 1,658 1 1 gold badge 16 16 silver badges 32 32 bronze badges. yeah the php script was adding some whitespaces at the beginning and images files became corrupted on downloading, ob_get_clean() fixed it. Get early access and see previews of new features. While returning from the function you have to use ob_start() and ob_get_clean() then alone you can get the result in the place where you need. Like the_content filter, which lets you access the markup for a post before it's output to the screen. I also want to be able to show the user the XML before hand. Apart from the fact that this code is a total mess and that its syntax is incorrect because of the lack of semicolon at the end of ob_flush() call, the main problem is that the filenames you read from the templist. send_test_email( 122, '[email protected]' ); /*. Find centralized, trusted content and collaborate around the technologies you use most. htaccess. Sorted by: 1. ob_get_clean() は、基本的に ob_get_contents() および ob_end_clean() を同時に実行するのと同じです。 出力バッファを開始するときに、 ob_start() で PHP_OUTPUT_HANDLER_CLEANABLE フラグを指定する必要があります。指定しなければ、 ob_get_clean() は動作しません。 With output buffering, your HTML is stored in a variable and sent to the browser as one piece at the end of your script. 0. If it is greater than zero, php will use the value as boolean true and therefore executes ob_end_clean () what cleans the buffer. It just executes the code without any feedback. ob_clean (): void. asked Nov 19, 2013 at 0:45. 0. I am writing a plugin that requires a large chunk of html. Actually, we can use type regulation - intval (ob_get_contents ()), for cheking On/Off output buffering, but it lays the possible problems in the future. If it takes 10 seconds for that page to load, rather than seeing a new line every 2 seconds, then it means that it is being cached by your webserver. 2. もしダウンロード処理までに出力バッファがあった場合、 ob_end_flush () を使うと、そのバッファの中身が出力されます。. Follow answered Feb 10, 2017 at 4:10. Books. ob_start () use. 0. Tiện ích lọc dữ liệu: Bạn có thể sử dụng ob_start để lọc. answered Mar 10, 2022 at 19:41. The output buffer must be started by ob_start with PHP_OUTPUT_HANDLER_FLUSHABLE flag. Kakou347 opened this issue on Apr 27, 2019 · 1 comment. ob_get_clean () is a function that gets the current output buffer contents and deletes it. Learn more about TeamsWith ob_start and ob_get_clean you redirect the echo from the standard outputbuffer to a variable. I am trying to create a modular plugin that includes action hooks for developers to add content before and after the main shortcode content. Right now all the stuff that gets included in wp_head are left justified all the way in the code view. ob_get_contents — Return the contents of the output buffer. Thanks for contributing an answer to Stack Overflow! Please be sure to answer the question. header () cannot be used once any output has begun. Everything works normally but the returned HTML structure is broken. For static files it can check the filesize, but for dynamic files that send output a little by little there is no way to know how many bytes it is going to output. ob_get_contents — Return the contents of the output buffer. In versions of dompdf prior to 0. Removing ob_start() and echo ob_get_clean() returns the same result on the admin page. The output buffer must be. 78k 3 3 gold badges 119 119 silver badges 161 161 bronze badges. – Cain Nuke Jun 25, 2019 at 23:37Off the top of my head, ob_flush() basically outputs the current buffer to PHP's internal buffer, then cleans the ob buffer. this won't work because output buffer is sent to the browser. ob_end_clean() don't work as intended. If not it should be the output-handler you used, check your php. Tiện ích lọc. This means that the output buffer is initiated and stopped with ob_end_clean(). If you are using error_log(), use ob_get_contents() and ob_end_clean() instead of ob_get_clean(). For example: buffer is empty; echo 'hello' - output buffer has "hello" stringIn this article, we will take an in-depth look at the ob_get_length() function and its usage. mPDF is a PHP library which generates PDF files from UTF-8 encoded HTML. 22. The definition should mention that the function also "turns off output buffering", not just cleans it. Am on a shared server. 4 ob_* functions. console. Place the buffer start before your output begins and the buffer content capture and clean after the output is complete and then save the content to a cache file… Buffering also allows headers() to be implemented after output has began. However, instead of repeatedly starting a new buffer, you could just erase the current buffer with ob_clean() in between calls of ob_get_contents()now what i want here is to remove the newlines from the stored output of the ob_get_clean(). ob_srtart begins output buffering. This includes information about PHP compilation options and extensions, the PHP version, server information and environment (if compiled as a module), the PHP environment, OS version information, paths, master and local values of configuration options, HTTP headers, and. The advantage is when you need to return the entire content of the page (or store it in a variable), rather than just echo it. I couldn't find any diagrams explaining output buffering on the worldwide-web so I made a diagram myself in Windows mspaint. If I vardump() the result of the Artisan::call method it just. ob_get_flush() — This functions creates combinatorial effects of both ob_get_contents() and ob_end_flush(). For example, if the page you want to render to PDF can be accessed via a web server then you can just load that page in your Dompdf script:ob_get_clean (PHP 4 >= 4. Otherwise ob_get_clean() will not work. ob_get_clean() When ob_end_clean() is called, it turns off buffering. So the browser doesn't receive header correctly. Improve this answer. I'm trying to create a way to show an image created with PHP/GD, in an OOP fashion. My main template file which would have the page layout (header, body, sidebar, footer) is included into the page. Output had to have started in order for processing to get to your shortcode. If you want to capture instead of echoing, you should use ob_get_clean () – kijin. Take a look at very simple example for PHP 5. ob_end_clean (): bool. In order to accomplish that, I created a class that, among other things, creates an image. Description ¶. Just make sure that you call ob_end_flush () the appropriate number of times. I am using ob_get_contents() to create a html file from php file. I have known for a long time that it closes the buffer and calls both ob_get_contents and ob_end_clean. 7. Those 4 lines of code wouldn't display the contents. output_callback. ob_start(), ob_get_clean() would be useful in case you want to include some views (~ MVC) in your shortcode, e. The reason I'm not voting for ob_get_clean is because I've had times when other developers get confused regarding what is really going on, the function name doesn't really state that the output buffering will end after it's call. ob_end_clean() don't work as intended. ob_start(): ob_start — Turn on output buffering. The rocket booster and then the spacecraft. ob_clean (): bool. Share. SpaceX's Starship launches on its second test flight from the Starbase facility in Boca Chica, Texas, on Saturday morning. Asking for help, clarification, or responding to other answers. 0, UTF-8 is the default. This one uses ob_get_clean() and does not produce the correct result:Wordpress: ob_get_clean(); doesn't return $value in shortcode?Helpful? Please support me on Patreon: thanks & prai. PHP may be configured to automatically create an output buffer when the script begins, which is why the buffer level may be 1 without calling ob_start (). If multiple output callback functions are active, output is being filtered sequentially through each of them in nesting order. 14. If you want to further process the buffer's contents you have to call ob_get_contents () before ob_flush () as the buffer contents are discarded after ob_flush () is called. This is referred to as output control. Follow edited Mar 10, 2022 at 21:43. W3Schools offers free online tutorials, references and exercises in all the major languages of the web. Flushes the system write buffers of PHP and whatever backend PHP is using (CGI, a web server, etc). Capturing PNG stream with PHP output buffer. 3. What you can do is to do an explicit ob_start() again in the beginning of the script so you get a second buffer as they can be nested. It can be distinguish using binary operator &:If you use ob_get_clean(), you delete output buffer after first call. The PHP ob_get_clean() function returns the contents of the current output buffer and then deletes this output buffer. When output buffer is ended it is sent to the client (browser). The string will be captured and echoed. joson_encode however does just fine, when wp_debug is disabled. The ob_end_flush () function deletes the topmost output buffer and outputs all of its contents. These are the top rated real world PHP examples of ob_GET_clean extracted from open source projects. The output buffer contents are returned correctly but if I have a file containing 100 lines of text the output buffer returns empty string (string with value null). Once output has started, the only way to redirect is through JavaScript, you cannot use PHP. Two problems. The output buffer must be started by ob_start () with PHP_OUTPUT_HANDLER_CLEANABLE flag. The ob_get_flush () function outputs the contents of the topmost output buffer, returns the contents and the deletes the buffer. Both approaches therefore may become unreliable - in particular when switching between development setups and/or production servers. ob_clean (): bool. Description ¶. 6. Conclusion. This function discards the contents of the output buffer. Here is sample php code snippet for function call. ob_get_length — Return the length of the output buffer. If you want to further process the buffer's contents you have to call ob_get_contents () before ob_end_flush () as the buffer contents are discarded after ob_end_flush () is called. Now, let say that output buffer contains a character "a" and headers are not yet sent. It executes both ob_get_contents () and ob_end_clean () functions. Oct 16, 2014 at 16:02. A callback function can be passed in to do processing on the contents of the buffer before it gets flushed from the buffer. This was a "teaching an old dog new tricks" mistake. The ob_clean () function deletes all of the contents of the topmost output buffer, preventing them from getting sent to the browser. Code Examples. What ob_flush () does is delete everything in the buffer, but keeps the buffer itself so more data can be put into it after the ob_flush () call. So ob_start() is supposed to capture output until another buffer function is called like ob_get_clean(), ob_get_contents(), ob_get_flush(). Answer to your both the question lies in output buffer(ob), Hope this will help you out in understanding. Essentially, an output buffer in PHP catches anything that would have been output to the browser (excluding headers). –As posts get their data set up via the_post() (respectively via setup_postdata()) and are therefore accessible through the API (get_the_ID() for e. Since `ob_get_clean()` accumulates the entire output in memory, dealing with large amounts of data might affect performance and memory usage. " Actually, the callback function, once set by ob_start (), will be called regardless. Whether the buffer-cleaning functions _should_ invoke the output callback (keeping in mind that in themselves they do not generate. to wit: given: ob_start(); echo 'before'; ob_start(); echo 'second';If you want to integrate a new plugin to sell courses and include the selection option in Tutor LMS > Settings > Monetization, then you can use the tutor_monetization_options filter. We hope this article has been informative and useful in understanding the ob_start () function in PHP. php on line 946. php, ignoring any *. I'm new with this library. The output may be caught by another output buffer or, if there are no other output buffers, sent directly to the browser. I pass the. Whether the buffer-cleaning functions _should_ invoke the output callback (keeping in mind that in themselves they do not generate. The ob_start () function is a useful tool for buffering your output in your PHP web application. If you want to integrate a new plugin to sell courses and include the selection option in Tutor LMS > Settings > Monetization, then you can use the tutor_monetization_options filter. phpMy script pushes file to browser for download thus requiring buffer to be clean and headers not sent. Here is sample php code snippet for function call. . Le tampon de sortie doit avoir été démarré avec la fonction ob_start () et le drapeau PHP_OUTPUT_HANDLER_CLEANABLE . On development machine sometimes it works but on the test machine it did not work. In this circumstance, the view process echoes the content of site first anomalously before the response sends cookie, headers, and content. If you want to use it for a larger buffer you have to edit. – Raj. to wit: given: ob_start(); echo 'before'; ob_start(); echo 'second'; PHP マニュアル：ob_end_flush. corvidmemory. ob_clean() This function removes what is stored in the output buffer. How to Use the ob_get_length() Function. htaccess. The ob_flush () function outputs the contents of the topmost output buffer and then clears the buffer of the contents. I'm making my first plugin and I have a problem with displaying my shortcode. g in your shortcode handler. This function does not destroy the output buffer like ob_end_clean () does. That will return the content rather than echo it directly and that you have to do in the case of a WordPress shortcode. If you want, use output buffering with ob_start() and ob_get_clean() to get the output contents into a string which you can then use to fill out Content-Length. ob_get_flush — Flush the output buffer, return it as a string and turn off output buffering. If you only want to get data as string and clear buffer use ob_get_clean() You can think of output buffering as creating "bookmarks" or "restore points" in output buffer. PHP ob_end_clean does not clear buffer. – bjauy May 21, 2012 at 7:41So I need to add an atributte to the shortcode in order to specify a custom filed value inside a loop which in turn is inside the get_template_part specified in the shortcode as follows: function testimonios_shortcode() { ob_start(); get_template_part('testimonios'); return ob_get_clean(); } add_shortcode(. I don't see here why you would use them to pass data from PHP to js. I actually wrote the function with with ob_get_clean(), however I switched it to ob_get_flush() as the later worked more reliably, i. Hi, we were using html_output() to get all the tags generated by the SEO Framework 4. This function will send the contents of the output buffer (if any). The output may be caught by another output buffer or, if there are no other output buffers, sent directly to the browser. (Necessitating ob_clean() as a further workaround. you have to use the new aliases instead of using the PHP 7. fdehanne fdehanne. ob_get_flush ( ): string|false. I'm having some trouble because anything I do in the function called by the action hook is always echoed out at the top of the shortcode instead of inside the shortcode where it belongs. Follow edited Nov 17 at 20:42. ob_get_flush() Returns the current buffer contents, output it immediately, then clean it out. 1 1 1 silver badge. 1) ob_flush (), flush () in any combination with other output buffering functions; 2) changes to php. Manual says: "The function will be called when ob_end_flush () is called, or when the output buffer is flushed to the browser at the end of the request. There is a compatibility issue because the Output Buffering has been changed in PHP 8. I suggest using the buffer, but you have to get the contents and then clean the buffer before the end of the page, otherwise it is outputted. This function does not destroy the output buffer like ob_end_clean () does. ob_get_flush() — This functions creates combinatorial effects of both ob_get_contents() and ob_end_flush(). ob_clean ()：. ob_get_clean() is returning the result of the buffer, and THEN cleaning it, triggering the callback which modifies the content. Tôi nhắc đến cơ chế cache vì các hàm ob_start(), ob_get_contents(), ob_clean(), ob_end_flush() sẽ hỗ trợ chúng ta trong quá trình thực hiện cơ chế này. ob_end_clean (): bool. ob_get_contents () will capture whatever was echoed, but it will not prevent it from being sent to the browser at a later time. I'm trying to find a catch-all filter that gives me one last crack at modifying the final markup in its entirety before output. Community Bot. The function will be called when the output buffer is flushed (sent) or cleaned (with ob_flush(), ob_clean() or similar function) or when the output buffer is flushed to the browser at the. Cette fonction ne détruit pas le contenu du tampon de sortie comme peut le faire ob_end_clean () . ob_get_clean () básicamente ejecuta ob_get_contents () y ob_end_clean () . Learn more about CollectivesI have an issue with a shortcode that I'm writing for wordpress. To do this correctly you should be doing ob_start() after ob_get_clean() because ob_get_clean() gets the current buffer contents and delete the current output buffer. Just make sure that you call ob_end_flush() the appropriate number of times. If you want to further process the buffer's contents you have to call ob_get_contents () before ob_flush () as the buffer contents are discarded after ob_flush () is called. I found out that the problem can be fixed by either using return instead of echo, or by using output buffering: (ob_start () / ob_get_contents ()) Unfortunately my coding skills are not what I would like them to be. Find centralized, trusted content and collaborate around the technologies you use most. For what you are trying to do, there is no need to use ob_start and ob_flush. If you are using error_log(), use ob_get_contents() and ob_end_clean() instead of ob_get_clean(). g. You don't see anything because you're assigning the content to $out but then you don't do anything with that value. Show file. It's useful in cases where you may need to filter some output, or you're using a PHP method (such as var_dump) that writes output. $image_data = ob_get_contents(); ob_end_clean(); echo $image_data; unlink($nameimage); Client (192. ob_implicit_flush (1); // Some browsers will not display the content if it is too short. Thanks for contributing an answer to Stack Overflow! Please be sure to answer. Learn how to use the ob_get_clean () function in PHP, an in-built function that cleans or deletes the current output buffer and returns the output buffering again. ob_get_flush — Flush the output buffer, return it as a string and turn off output buffering. So why in manual these functions are under control PHP_OUTPUT_HANDLER_CLEANABLE const? I'm confused about using flags in. This function discards the contents of the topmost output buffer and turns off this output buffering. ob_get_contents simply gets the contents of the output buffer since you called ob_start (). 1. ob_get_status() returns status information on either the top level output buffer or all active output buffer levels if full_status is set to true. And for that, you can give him the content like the previous example, or give an url. Take a look at very simple example for PHP 5. We would like to show you a description here but the site won’t allow us. ob_get_contents — Return the contents of the output buffer. ob_get_clean essentially executes both ob_get_contents and ob_end_clean (). ob_get_clean () is a function that gets the current output buffer contents and deletes it. ob_get_clean essentially executes both ob_get_contents and ob_end_clean. 0, PHP 5, PHP 7) ob_get_clean — Get current buffer contents and delete current output buffer Description ob_get_clean ( ) : string Gets the current. Understanding ob_start() function in php. console. Covering popular subjects like HTML, CSS, JavaScript, Python, SQL, Java, and many, many more. Follow answered Jul 30, 2014 at 7:16. cls. Using the ob_get_length() function is straightforward. So as i'm only using ob_get_clean to stop junk being passed back is there any implications to not using ob_start? Test Code:PHP - ob_flush - clean old text and print new text in loop Hot Network Questions A stranger messaged me “please put 10 dollars on my card”, followed by a card number. PHP may be configured to automatically create an output buffer when the script begins, which is why the buffer level may be 1 without calling ob_start (). After this you can move go on - even with only flush () instead of ob_flush (). . ob_get_flush () flushes the output buffer, return it as a string and turns off output buffering. Stack Overflow is leveraging AI to summarize the most relevant questions and answers from the community, with the option to ask follow-up questions in a conversational format. Conclusion. i dont know how you can get the gd2 resource into an object you can pass to Response::make. I'm facing a weird problem when using the Elementor Wordpress Page Builder. Starting Output Buffering. php some other way. But you also need to end and retrieve the contents of the buffer as well. Sintaxis: string|false ob_get_clean(); There is a compatibility issue because the Output Buffering has been changed in PHP 8. Advantages of output buffering. Gets the current buffer contents and delete current output buffer. 0, but it seems that the function is deprecated in 4. ob_clean () Deletes all of the content from the topmost output buffer. Hooking on the wp_h. 3. Capture php output of function call. It's showing two because you have a 2nd layer of output buffering active. Should you wish to use the output from the included file, you should use op_get_contents() , which will return a string of the contents of the buffer. No, this is not a correct use for ob_start(). Further, with json-data as response, you need to use dataType: 'json' in your ajax call:I am using ob_get_clean in a script that is called by ajax. It may be due to something in the include file. ob_get_clean — Get current buffer contents and delete current output buffer. Sorry to resurrect a 4 year old post, but I stumbled across it and wanted to point out that ob_get_contents() followed by ob_clean() is not exactly the same as ob_get_clean(). Output Control 함수 목록. , ob_get_clean() would only return the contents of style. Learn more about TeamsI can see the use of ob_start with the output_callback parameter set but I can't see the use of ob_start when calling it without any parameters set at all. ob_get_clean, only works twice. Milo Milo. Using output buffering ( ob_start () / ob_get_contents ()) is a valid way of addressing the problem however you need to move the code. In this case, since the 2 statements follow each other, you're not intercepting anything at all. It works. php. Here are the functions that invoke callback function immediately: ob_clean. Obtiene el contenido del búfer actual y elimina el búfer de salida actual. In PHP 8. output buffering ob_get. Just wanted to get this out there in case anyone needed it. ob_get_clean() essentially executes both ob_get_contents() and ob_end_clean(). As a result, the first ob_start () will have an ob_get_level () of 2, the second will be 3, and so on. For example: use function OutputControl\ob_start; use function OutputControl\ob_end_flush; use function OutputControl\ob_get_clean; ob_start (); echo "Hello, world. If you are using error_log(), use ob_get_contents() and ob_end_clean() instead of ob_get_clean(). x. The output buffer must be started by ob_start() with PHP_OUTPUT_HANDLER_CLEANABLE flag. 2) $bild="images/newimage2. It executes both ob_get_contents () and ob_end_clean () functions. You're getting the warning because your script is outputting code before the page headers are sent - meaning you're printing output before the html page. 43. The output may be caught by another output buffer, or, if there are no other output buffers, sent directly to the browser. 4. kub. I am including HTML template in my shortcode by using ob_start & ob_get_clean. 6. I am trying to get the browser timezone via JavaScript and capture it in a php variable with ob_start() and ob_get_clean. php Project: jiatower/php. It looks like the answer is no, there is no single command to get the output buffer and erase it without turning it off. The problem with this is, that you have “ob_get_clean” outside the “if”, where “ob_start” is. I found out that the problem can be fixed by either using return instead of echo, or by using output buffering: (ob_start () / ob_get_contents ()) Unfortunately my coding skills are not what I would like them to be. Teams. Learn more about Labs ob_get_clean and ob_get_contents return content to screen instead of putting it into variable when used with var_dumpHandling ressources easily. patch This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. Hi, i am using 0. If you say this in PHP: echo 'Hello'; it will result in the string Hello being sent to the browser more or less immediately. Everything works normally but the returned HTML structure is broken. 2 with no alternative. function test_shortcodes () { return 'Shortcodes are working!'; } add_shortcode ('test_shortcodes', 'test_shortcodes'); I have. Gets the current buffer contents and delete current output buffer. Calling the function get_the_content () for a post, does not run the filter for shortcodes (if any). To troubleshoot this, I would first remove any encoding conversion and try to open the text file in a web browser to eliminate any issues with how you're looking at the file and to confirm it is indeed coming out in UTF-8. What is the ob_get_level() Function? The ob_get_level() function is a PHP built-in function that allows you to get the current level of output buffering. We hope this article has been informative and useful in understanding the ob_clean () function in PHP. ), let's assume that we are looping through a set of users (as setup_userdata() fills the global variables of the currently logged in user and isn't useful for this task) and try to display. This is not always the same as the number of characters because some characters may have more than one byte. 2. ob_get_clean () remove value of input. También se usa para obtener el búfer de salida nuevamente después de limpiar el búfer. 1. ob_start (); $ attributes = shortcode_atts (array ( 'id' = > 'value', ), $ atts); // your desired code return ob_get_clean. it will work as you would use ob_start with no. Output buffering works by intercepting all output; anything in between ob_start() and ob_end_clear() is intercepted; any output that precedes ob_start() is not. 5. The string(18) part could be explained if the function prints lots of white space (spaces, tabs or even carriage returns) and you inspect var_dump()'s output through a web browser (so it renders as HTML and spaces are collapsed). Which means that the contents returned are not the result returned by the callback, but the input passed to the callback. I think what @toscho tried to say isn't that you can't nest, but that if for some reason you call ob_get_clean() before the code of e. ob_get_clean, only works twice.