3v4l.org

run code in 300+ PHP versions simultaneously
<?php $foo = "115.10" +1; echo $foo."\n"; if(is_float($foo) && $foo."" != "INF") { $foo = substr(($foo * 2),2,3); echo $foo; if(ctype_alpha($foo)) { solove1(); } else { echo "Nope...\n"; } } echo "<br/>"; ?>
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 - 7.1.10, 7.2.0 - 7.2.33, 7.3.16 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
116.1 2.2Nope... <br/>

preferences:
245.21 ms | 405 KiB | 306 Q