--TEST--
ob_start(): Check behaviour with various callback return values.
--FILE--
<?php
function return_empty_string($string) {
return "";
}
function return_false($string) {
return false;
}
function return_null($string) {
return null;
}
function return_string($string) {
return "I stole your output.";
}
function return_zero($string) {
return 0;
}
// Use each of the above functions as an output buffering callback:
$functions = get_defined_functions();
$callbacks = $functions['user'];
sort($callbacks);
foreach ($callbacks as $callback) {
echo "--> Use callback '$callback':\n";
ob_start($callback);
echo 'My output.';
ob_end_flush();
echo "\n\n";
}
?>
==DONE==
--EXPECTF--
--> Use callback 'return_empty_string':
--> Use callback 'return_false':
My output.
--> Use callback 'return_null':
--> Use callback 'return_string':
I stole your output.
--> Use callback 'return_zero':
0
==DONE==
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