<?php
// Everything you enter here will be executed by our servers. Try it!
$a = array();
for ($i = 0; $i < 20; $i++) {
$a[] = (int) sprintf('%02d', $i);
}
echo implode($a, ',');
Fatal error: Uncaught TypeError: implode(): Argument #2 ($array) must be of type ?array, string given in /in/qOcUd:7
Stack trace:
#0 /in/qOcUd(7): implode(Array, ',')
#1 {main}
thrown in /in/qOcUd on line 7
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/qOcUd on line 7
0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19