3v4l.org

run code in 300+ PHP versions simultaneously
<?php if(!ini_get('output_buffering')) ob_start(); ini_set('implicit_flush', '0'); ini_set('display_errors', '1'); ini_set('display_startup_errors', '1'); error_reporting(-1); $var = TRUE; $i = 0; while($var) { usleep(1000000); $time = time(); $out = $time - 1; ++$i; if(2 == $i) { $var = FALSE; $i = NULL; unset($i); } $dis = $out . ' '; $time = NULL; $out = NULL; unset($time, $out); echo $dis; $dis = NULL; unset($dis); } $i = NULL; unset($i, $var);
Output for 7.4.0 - 7.4.26, 8.0.1 - 8.0.14, 8.1.0 - 8.1.1
1641861088 1641861089
Output for 7.4.27
1641861291 1641861292

preferences:
85.4 ms | 401 KiB | 47 Q