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<?php $a = 1; $b = array(2, 3); $arr = array(&$a, &$b[0], &$b[1]); $arr[0]++; $arr[1]++; echo implode($a); echo implode($b); ?>
Output for 8.1.24 - 8.1.28, 8.2.11 - 8.2.18, 8.3.0 - 8.3.6
Fatal error: Uncaught TypeError: implode(): Argument #1 ($array) must be of type array, string given in /in/7ZgFm:6 Stack trace: #0 /in/7ZgFm(6): implode('2') #1 {main} thrown in /in/7ZgFm on line 6
Process exited with code 255.
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.23, 8.2.0 - 8.2.10
Fatal error: Uncaught TypeError: implode(): Argument #1 ($pieces) must be of type array, string given in /in/7ZgFm:6 Stack trace: #0 /in/7ZgFm(6): implode('2') #1 {main} thrown in /in/7ZgFm on line 6
Process exited with code 255.
Output for 5.2.5 - 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
Warning: implode(): Argument must be an array in /in/7ZgFm on line 6 33
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 - 5.2.4
Warning: implode(): Argument to implode must be an array. in /in/7ZgFm on line 6 33
Output for 4.3.0 - 4.3.1
Warning: implode() [http://www.php.net/function.implode]: Argument to implode must be an array. in /in/7ZgFm on line 6 33

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