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<?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 git.master, git.master_jit
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 rfc.property-hooks
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

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