uopz_set_return

(PECL uopz 5, PECL uopz 6)

uopz_set_return — Provide a return value for an existing function

Descrierea

uopz_set_return ( string $function , mixed $value [, bool $execute = FALSE ] ) : bool
uopz_set_return ( string $class , string $function , mixed $value [, bool $execute = FALSE ] ) : bool

Sets the return value of the function to value. If value is a Closure and execute is set, the Closure will be executed in place of the original function. It is possible to call the original function from the Closure.

Notă:

This function replaces uopz_rename().

Parametri

class

The name of the class containing the function

function

The name of an existing function

value

The value the function should return. If a Closure is provided and the execute flag is set, the Closure will be executed in place of the original function.

execute

If true, and a Closure was provided as the value, the Closure will be executed in place of the original function.

Valorile întoarse

True if succeeded, false otherwise.

Exemple

Example #1 uopz_set_return() example

<?php
uopz_set_return("strlen", 42);
echo strlen("Banana");
?>

Exemplul de mai sus va afișa:

42

Example #2 uopz_set_return() example

<?php
uopz_set_return("strlen", function($str) { return strlen($str) * 2; }, true );
echo strlen("Banana");
?>

Exemplul de mai sus va afișa:

12

Example #3 uopz_set_return() class example

<?php
class My {
    public static function strlen($arg) {
        return strlen($arg);
    }
}
uopz_set_return(My::class, "strlen", function($str) { return strlen($str) * 2; }, true );
echo My::strlen("Banana");
?>

Exemplul de mai sus va afișa:

12