3v4l.org

run code in 300+ PHP versions simultaneously
<?php $input = ""; for ($t=0; $t<10; $t++) $input .= chr($t); echo "input = ".$input."\n\n"; var_dump(strpos($input, ".")); for ($t=0; $t<strlen($input); $t++) echo "[".ord(substr($input, $t, 1))."] ";
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 - 5.3.28, 5.4.0 - 5.4.27, 5.4.34 - 5.4.45, 5.5.24 - 5.5.35, 5.6.7 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.19, 8.3.0 - 8.3.7
input =  bool(false) [0] [1] [2] [3] [4] [5] [6] [7] [8] [9]
Output for 5.4.32
input = 5.4.32KBos7 bool(false) [0] [1] [2] [3] [4] [5] [6] [7] [8] [9]
Output for 5.4.31
input = 5.4.31KBos7 bool(false) [0] [1] [2] [3] [4] [5] [6] [7] [8] [9]
Output for 5.4.30
input = 5.4.30KBos7 bool(false) [0] [1] [2] [3] [4] [5] [6] [7] [8] [9]
Output for 5.4.29
input = 5.4.29KBos7 bool(false) [0] [1] [2] [3] [4] [5] [6] [7] [8] [9]
Output for 5.4.28
input = 5.4.28KBos7 bool(false) [0] [1] [2] [3] [4] [5] [6] [7] [8] [9]
Output for 5.3.29
input = 5.3.29KBos7 bool(false) [0] [1] [2] [3] [4] [5] [6] [7] [8] [9]
preferences:
235.32 ms | 401 KiB | 358 Q