ob-start | 易学教程

why do I need to end my ob_start()?

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The php documentation suggests that I should end each ob_start() with an ob_end_flush(). I am using one on each page of a site, just to allow me to use firephp log methods anywhere in the app. the app works fine, but I wonder if there is anything I don't know that might be detrimental. I think the reason for this suggestion is, that PHP flushes your output buffer implicitly when not using one of the ob_end_* functions. While not an error, this can cause problems when not expecting it. The PHP-docs try to protect you from these kind of problems. If you are aware of the implicit flush, it is

How to redirect with header location in php when using ob_start?

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<?php ob_start(); echo "<body>Hello " if ($condition) { header( "Location: http://www.google.com/" ); exit; } echo " World!</body>"; ob_end_flush(); ?> When $condition is true I get this: <body>Hello What I want is when $condition will be true then go to Google!!! I don't know what is happening, can you explain or give me a solution!? Thanks. Just add ob_end_clean(); before the header call. Laurynas Tretjakovas Everything should work, just put an ; after echo " <body>Hello " and you will be fine.. thedethfox If I were you, I would have started what might go wrong first then do the

Email function using templates. Includes via ob_start and global vars

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I have a simple Email() class. It's used to send out emails from my website. <? Email::send($to, $subj, $msg, $options); ?> I also have a bunch of email templates written in plain HTML pierced with a few PHP variables. E.g. /inc/email/templates/account_created.php : Dear <?=$name?>, Thank you for creating an account at <?=$SITE_NAME?>. To login use the link below: <a href="https://<?=$SITE_URL?>/account" target="_blank"><?=$SITE_NAME?>/account</a> In order to have the PHP vars rendered I had to include the template into my function. But since include does not return the

Methods ob_start and ob_flush don't work, why?

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I am using ob_start() / ob_flush() to, hopefully, give me some progress during a long import operation. Here is a simple outline of what I'm doing: <?php ob_start (); echo "Connecting to download Inventory file. "; $conn = ftp_connect($ftp_site) or die("Could not connect"); echo "Logging into site download Inventory file. "; ftp_login($conn,$ftp_username,$ftp_password) or die("Bad login credentials for ". $ftp_site); echo "Changing directory on download Inventory file. "; ftp_chdir($conn,"INV") or die("could not change directory to INV"); // connection, local, remote, type, resume

Methods ob_start and ob_flush don't work, why?

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问题 I am using ob_start() / ob_flush() to, hopefully, give me some progress during a long import operation. Here is a simple outline of what I'm doing: <?php ob_start (); echo "Connecting to download Inventory file. "; $conn = ftp_connect($ftp_site) or die("Could not connect"); echo "Logging into site download Inventory file. "; ftp_login($conn,$ftp_username,$ftp_password) or die("Bad login credentials for ". $ftp_site); echo "Changing directory on download Inventory file. "; ftp_chdir(

why ob_start() must come ahead of session_start() to work in PHP?

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问题 I don't think it's reasonable. Why is it actually such a rule? 回答1: In the " normal case ", I don't think ob_start has to be called before session_start -- nor the other way arround. Quoting the manual page of session_start, though : session_start() will register internal output handler for URL rewriting when trans-sid is enabled. If a user uses ob_gzhandler or like with ob_start(), the order of output handler is important for proper output. For example, user must register ob_gzhandler before