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runkit_sandbox_output_handler

(PECL)

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

說明

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.

注: 對沙盒的支援（是函數 runkit_lint()、runkit_lint_file() 和 Runkit_Sandbox 類所必須的）僅在 PHP 5.1 中，或在加過特別修改更新的 PHP 5.0 中，並需要啟用執行緒安全。請閱讀 runkit 包中的 README 檔案以瞭解更多訊息。

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.

參數

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.

返回值

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

範例

例子 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;
?>

上例將輸出：

Sandbox Complete

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



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