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run code in 300+ PHP versions simultaneously
<?php function returnFirst($rsrnum) { $char = $rsrnum[0]; return ctype_alpha($char) ? strtolower($char) : '%23'; } echo returnFirst('ADSASTEADS')."\n"; echo returnFirst(2342342)."\n"; echo returnFirst('3SASDAsd')."\n";
Output for 8.3.0 - 8.3.6
a Warning: Trying to access array offset on int in /in/fVXve on line 4 Deprecated: ctype_alpha(): Argument of type null will be interpreted as string in the future in /in/fVXve on line 5 %23 %23
Output for 8.1.0 - 8.1.28, 8.2.0 - 8.2.18
a Warning: Trying to access array offset on value of type int in /in/fVXve on line 4 Deprecated: ctype_alpha(): Argument of type null will be interpreted as string in the future in /in/fVXve on line 5 %23 %23
Output for 8.0.0 - 8.0.30
a Warning: Trying to access array offset on value of type int in /in/fVXve on line 4 %23 %23
Output for 7.4.0 - 7.4.33
a Notice: Trying to access array offset on value of type int in /in/fVXve on line 4 %23 %23
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, 5.5.0 - 5.5.36, 5.6.0 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33
a %23 %23
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173.27 ms | 405 KiB | 362 Q