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<?php function returnFirst($rsrnum) { $char = $rsrnum[0]; return ctype_alpha($char) ? strtolower($char) : '%23'; } echo returnFirst('ADSASTEADS')."\n"; echo returnFirst('{column_1[1]')."\n"; echo returnFirst('3SASDAsd')."\n";
Output for git.master, git.master_jit, rfc.property-hooks
a %23 %23

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