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<?php $array = [ '7.2' => 1, '72' => 2]; foreach( $array as $k => $v) { print $k[0].PHP_EOL; } print 'a'.PHP_EOL;
Output for git.master_jit, git.master
7 Warning: Trying to access array offset on value of type int in /in/nAiFi on line 5 a
Output for rfc.property-hooks
7 Warning: Trying to access array offset on int in /in/nAiFi on line 5 a

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