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run code in 300+ PHP versions simultaneously
<?php foreach ( [ false, null, [], '', '0', '0.0' ] as $value ) { $value = implode( "\n", (array) $value ); if ( $value ) { $value = str_replace( ' ', "\n", $value ); } var_dump( $value ); }

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52.09 ms | 402 KiB | 5 Q