SplObjectStorage::offsetExists
PHP function
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(PHP 5 >= 5.3.0, PHP 7, PHP 8)
Checks whether an object exists in the storage
Description
SplObjectStorage::offsetExists(object $object): bool
Checks whether an object exists in the storage.
Note
SplObjectStorage::offsetExists is an alias of SplObjectStorage::contains.
Parameters
objectThe
objectto look for.
Return Values
Returns true if the object exists in the storage, and false otherwise.
Examples
SplObjectStorage::offsetExists() example
php
<?php
$s = new SplObjectStorage;
$o1 = new stdClass;
$o2 = new stdClass;
$s->attach($o1);
var_dump($s->offsetExists($o1)); // Similar to isset($s[$o1])
var_dump($s->offsetExists($o2)); // Similar to isset($s[$o2])
?>The above example will output something similar to:
output
bool(true)
bool(false)See Also
SplObjectStorage::offsetSetSplObjectStorage::offsetGetSplObjectStorage::offsetUnset