ob_get_flush

Description

string ob_get_flush ( void )

ob_get_flush() flushs the output buffer, return it as a string and turns off output buffering. ob_get_flush() returns FALSE if no buffering is active.

注: This function is similar to ob_end_flush(), except that this function returns the buffer as a string.

例子 1. ob_get_flush() example
<?php //using output_buffering=On print_r(ob_list_handlers()); //save buffer in a file $buffer = ob_get_flush(); file_put_contents('buffer.txt', $buffer); print_r(ob_list_handlers()); ?>
上例将输出：
Array ( [0] => default output handler ) Array ( )

add a note User Contributed Notes

zubin@byron
08-Sep-2005 10:28


Correction to previous post: ob_get_clean() is better, ie:



<?php

// start generating html

$html = '<html><head>'; // etc

// start output buffering

ob_start();

// call function which outputs immediately

print_menu();

// append this to $html and empty buffer

$html .= ob_get_clean();

?>

zubin@byron
01-Sep-2005 04:21


I found this function is useful for storing output instead of displaying it. For example, I wanted to use an old function which echoed the ouput but I wanted it in a variable, not outputted immediately. Here's how:



<?php

// start generating html

$html = '<html><head>'; // etc

// start output buffering

ob_start();

// call function which outputs immediately

print_menu();

// append this to $html

$html .= ob_get_flush();

// empty output buffer

ob_clean();

?>

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