3v4l.org

run code in 300+ PHP versions simultaneously
<?php $foo = array( 1 => 1, 2 => 4, 3 => 9 ); var_dump( implode( $foo, ', ') );
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Fatal error: Uncaught TypeError: implode(): Argument #2 ($array) must be of type ?array, string given in /in/mN4W0:5 Stack trace: #0 /in/mN4W0(5): implode(Array, ', ') #1 {main} thrown in /in/mN4W0 on line 5
Process exited with code 255.
Output for 7.4.0 - 7.4.33
Deprecated: implode(): Passing glue string after array is deprecated. Swap the parameters in /in/mN4W0 on line 5 string(7) "1, 4, 9"
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, 5.6.7 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.10, 7.2.29 - 7.2.33, 7.3.12 - 7.3.33
string(7) "1, 4, 9"
preferences:
203.19 ms | 405 KiB | 312 Q