PHP 5.4.36 Released

runkit_method_redefine

(PECL runkit >= 0.7.0)

runkit_method_redefineDynamically changes the code of the given method

Descrição

bool runkit_method_redefine ( string $classname , string $methodname , string $args , string $code [, int $flags = RUNKIT_ACC_PUBLIC ] )

Nota: This function cannot be used to manipulate the currently running (or chained) method.

Aviso

Esta função é EXPERIMENTAL. O comportamento desta função, seu nome, incluindo toda documentação pode ser modificado sem aviso em futuras versões do PHP. Esta função deve ser usada por sua própria conta e risco.

Parâmetros

classname

The class in which to redefine the method

methodname

The name of the method to redefine

args

Comma-delimited list of arguments for the redefined method

code

The new code to be evaluated when methodname is called

flags

The redefined method can be RUNKIT_ACC_PUBLIC, RUNKIT_ACC_PROTECTED or RUNKIT_ACC_PRIVATE

Nota:

This parameter is only used as of PHP 5, because, prior to this, all methods were public.

Valor Retornado

Retorna TRUE em caso de sucesso ou FALSE em caso de falha.

Exemplos

Exemplo #1 runkit_method_redefine() example

<?php
class Example {
    function 
foo() {
        return 
"foo!\n";
    }
}

// create an Example object
$e = new Example();

// output Example::foo() (before redefine)
echo "Before: " $e->foo();

// Redefine the 'foo' method
runkit_method_redefine(
    
'Example',
    
'foo',
    
'',
    
'return "bar!\n";',
    
RUNKIT_ACC_PUBLIC
);

// output Example::foo() (after redefine)
echo "After: " $e->foo();
?>

O exemplo acima irá imprimir:

Before: foo!
After: bar!

Veja Também

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User Contributed Notes 2 notes

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0
lauri dot piisang at cashongo dot co dot uk
2 years ago
A sample implementation of redefining a public static method of symfony's sfDate to 'travel in time' with runkit:
<?php
//Going back in time 3 days
$subtractablePeriod = 3;
runkit_method_redefine('sfDateTimeToolkit', 'now', '', 'return strtotime("-'.$subtractablePeriod.' days");', (RUNKIT_ACC_PUBLIC | RUNKIT_ACC_STATIC));   

//Do Stuff here that would otherwise get the current date

//Return to realtime
runkit_method_redefine('sfDateTimeToolkit', 'now', '', 'return time();', (RUNKIT_ACC_PUBLIC | RUNKIT_ACC_STATIC));
?>
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0
anton at bondarenko.cc
2 years ago
In last runkit versions you can also use RUNKIT_ACC_STATIC constant as flags parametr to redifine static function.
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