PHP 7.4.0RC2 Released!

Basic usage

Example #1 Output Control example

<?php

ob_start
();
echo 
"Hello\n";

setcookie("cookiename""cookiedata");

ob_end_flush();

?>

In the above example, the output from echo would be stored in the output buffer until ob_end_flush() was called. In the mean time, the call to setcookie() successfully stored a cookie without causing an error. (Headers cannot normally be sent to the browser after data has already been sent.)

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User Contributed Notes 1 note

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dario dot cangialosi at gmail dot com
6 months ago
<?php
function  ob($function){
ob_start();
$function();
$produced = ob_get_contents();
ob_end_clean();
return
$produced;
}
echo
ob(function(){echo 123;})=='123'?"echo captured\n":'';
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