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<?php $test = array( 1 => array( "contentIds" => array( 12, 13, 14 ), "locationIds" => array( 24 ) ), 2 => array( "contentIds" => array( 12, 13, 14 ), "locationIds" => array( 24 ) ) ); var_dump( array_flip( $test ) );
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Warning: array_flip(): Can only flip string and integer values, entry skipped in /in/E9EQT on line 15 Warning: array_flip(): Can only flip string and integer values, entry skipped in /in/E9EQT on line 15 array(0) { }
Output for 4.3.2 - 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, 5.6.7 - 5.6.21, 7.0.0 - 7.0.20, 7.1.0 - 7.1.7, 7.2.29 - 7.2.33, 7.3.12 - 7.3.33, 7.4.0 - 7.4.33
Warning: array_flip(): Can only flip STRING and INTEGER values! in /in/E9EQT on line 15 Warning: array_flip(): Can only flip STRING and INTEGER values! in /in/E9EQT on line 15 array(0) { }
Output for 4.3.0 - 4.3.1
Warning: array_flip() [http://www.php.net/function.array-flip]: Can only flip STRING and INTEGER values! in /in/E9EQT on line 15 Warning: array_flip() [http://www.php.net/function.array-flip]: Can only flip STRING and INTEGER values! in /in/E9EQT on line 15 array(0) { }

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