3v4l.org

run code in 300+ PHP versions simultaneously
<?php $part = NULL; $_1 = "abc"; if ( $part !== "" && 0 === strpos($_1, $part)) { echo "koko"; }
Output for 8.1.0 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
Deprecated: strpos(): Passing null to parameter #2 ($needle) of type string is deprecated in /in/nUbvo on line 4 koko
Output for 8.0.0 - 8.0.30
koko
Output for 7.3.0 - 7.3.31, 7.4.0 - 7.4.33
Deprecated: strpos(): Non-string needles will be interpreted as strings in the future. Use an explicit chr() call to preserve the current behavior in /in/nUbvo on line 4
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 - 5.3.29, 5.4.0 - 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, 7.3.32 - 7.3.33

preferences:
285.85 ms | 404 KiB | 337 Q