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runkit_sandbox_output_handler

(PECL runkit >= 0.7.0)

runkit_sandbox_output_handler Specify a function to capture and/or process output from a runkit sandbox

Descrizione

mixed runkit_sandbox_output_handler ( object $sandbox [, mixed $callback ] )

Ordinarily, anything output (such as with echo or print) will be output as though it were printed from the parent's scope. Using runkit_sandbox_output_handler() however, output generated by the sandbox (including errors), can be captured by a function outside of the sandbox.

Nota: Il support sandbox (richiesto per runkit_lint(), runkit_lint_file(), e per la classe Runkit_Sandbox) è disponibile solo con PHP 5.1.0 o versioni appositamente patchate di PHP 5.0 e richiede che sia abilitata la thread safety. Vedere il file README incluso nel package runkit per ulteriori informazioni.

Nota: Deprecated

As of runkit version 0.5, this function is deprecated and is scheduled to be removed from the package prior to a 1.0 release. The output handler for a given Runkit_Sandbox instance may be read/set using the array offset syntax shown on the Runkit_Sandbox class definition page.

Elenco dei parametri

sandbox

Object instance of Runkit_Sandbox class on which to set output handling.

callback

Name of a function which expects one parameter. Output generated by sandbox will be passed to this callback. Anything returned by the callback will be displayed normally. If this parameter is not passed then output handling will not be changed. If a non-truth value is passed, output handling will be disabled and will revert to direct display.

Valori restituiti

Returns the name of the previously defined output handler callback, or FALSE if no handler was previously defined.

Esempi

Example #1 Feeding output to a variable

<?php
function capture_output($str) {
  
$GLOBALS['sandbox_output'] .= $str;

  return 
'';
}

$sandbox_output '';

$php = new Runkit_Sandbox();
runkit_sandbox_output_handler($php'capture_output');
$php->echo("Hello\n");
$php->eval('var_dump("Excuse me");');
$php->die("I lost myself.");
unset(
$php);

echo 
"Sandbox Complete\n\n";
echo 
$sandbox_output;
?>

Il precedente esempio visualizzerà:

Sandbox Complete

Hello
string(9) "Excuse me"
I lost myself.

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