runkit_function_redefine

(PECL runkit >= 0.7.0)

runkit_function_redefine — Replace a function definition with a new implementation

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runkit_function_redefine ( string $funcname , string $arglist , string $code [, bool $return_by_reference = NULL [, string $doc_comment = NULL ]] ) : bool
runkit_function_redefine ( string $funcname , Closure $closure [, string $doc_comment = NULL ] ) : bool

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funcname

Name of function to redefine

arglist

New list of arguments to be accepted by function

code

New code implementation

closure

A closure that defines the function.

return_by_reference

Whether the function should return by reference.

doc_comment

The doc comment of the function.

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runkit 1.0.4 An alternative syntax expecting a closure has been added.
runkit 1.0.4 The optional parameters return_by_reference and doc_comment have been added.

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Example #1 A runkit_function_redefine() example

<?php
function testme() {
  echo "Original Testme Implementation\n";
}
testme();
runkit_function_redefine('testme','','echo "New Testme Implementation\n";');
testme();
?>

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Original Testme Implementation
New Testme Implementation

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