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run code in 300+ PHP versions simultaneously
<?php $arr = array(); $arr['all'][] = 'bar'; var_dump( $arr ); /* $arr = array( 'all' => 'foo' ); $arr['all'][] = 'bar'; var_dump( $arr ); */ $arr = array( 'all' => array() ); $arr['all'][] = 'bar'; var_dump( $arr ); $arr = array( 'all' => array( 'foo' ) ); $arr['all'][] = 'bar'; var_dump( $arr );
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.8 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.10, 7.2.0 - 7.2.33, 7.3.16 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
array(1) { ["all"]=> array(1) { [0]=> string(3) "bar" } } array(1) { ["all"]=> array(1) { [0]=> string(3) "bar" } } array(1) { ["all"]=> array(2) { [0]=> string(3) "foo" [1]=> string(3) "bar" } }
preferences:
259.37 ms | 406 KiB | 311 Q