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@ 2021-11-16T01:02:32Z

<?php

$obj = new ArrayObject(
    array(
		2              => array( 'title' => 'Test Title' ),
		'_multiwidget' => 1,
		'__i__'        => true,
	)
);

var_dump( isset( $obj[ 2 ] ) );
var_dump( array_key_exists( 2, $obj ) );

Output
Performance
VLD
References
Branches

var_dump: documentation ( source)

preferences:dark modelive previewkey bindings

34.08 ms | 404 KiB | 5 Q