3v4l.org

run code in 300+ PHP versions simultaneously
<?php $querystring = "test.ai"; if( (substr(strtolower($QUERYSTRING), -3) != ".ai") && (substr(strtolower($QUERYSTRING), -4) != ".eps")) { echo "not allowed"; } else { echo "allowed"; }
Output for 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Warning: Undefined variable $QUERYSTRING in /in/kCkUn on line 5 Deprecated: strtolower(): Passing null to parameter #1 ($string) of type string is deprecated in /in/kCkUn on line 5 Warning: Undefined variable $QUERYSTRING in /in/kCkUn on line 5 Deprecated: strtolower(): Passing null to parameter #1 ($string) of type string is deprecated in /in/kCkUn on line 5 not allowed
Output for 8.0.0 - 8.0.30
Warning: Undefined variable $QUERYSTRING in /in/kCkUn on line 5 Warning: Undefined variable $QUERYSTRING in /in/kCkUn on line 5 not allowed
Output for 5.0.4 - 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, 5.6.8 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.0 - 7.2.33, 7.3.16 - 7.3.31, 7.4.0 - 7.4.33
Notice: Undefined variable: QUERYSTRING in /in/kCkUn on line 5 Notice: Undefined variable: QUERYSTRING in /in/kCkUn on line 5 not allowed
Output for 7.3.32 - 7.3.33
not allowed
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.3
Notice: Undefined variable: QUERYSTRING in /in/kCkUn on line 5 Notice: Undefined variable: QUERYSTRING in /in/kCkUn on line 5 not allowed
preferences:
206.7 ms | 402 KiB | 312 Q