WeakRef
PHP Manual

Weakref::valid

(PECL weakref >= 0.1.0)

Weakref::validChecks whether the object referenced still exists

Descrierea

public bool Weakref::valid ( void )

Checks whether the object referenced still exists.

Parametri

Această funcție nu are parametri.

Valorile întoarse

Returns TRUE if the object still exists and is thus still accessible via Weakref::get(), FALSE otherwise.

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WeakRef
PHP Manual