3v4l.org

run code in 300+ PHP versions simultaneously
<?php $testSite = array( 'name' => 'test site', 'modules' => array( 'foo' => 'true', 'bar' => 'true' ) ); $testData = array( 'modules' => array( 'bar' => 'false' ) ); var_dump('before', $testSite); $testSite = array_merge_recursive($testSite, $testData); var_dump('after', $testSite);
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, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 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
string(6) "before" array(2) { ["name"]=> string(9) "test site" ["modules"]=> array(2) { ["foo"]=> string(4) "true" ["bar"]=> string(4) "true" } } string(5) "after" array(2) { ["name"]=> string(9) "test site" ["modules"]=> array(2) { ["foo"]=> string(4) "true" ["bar"]=> array(2) { [0]=> string(4) "true" [1]=> string(5) "false" } } }

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