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<?php $inputs = array(NULL, 0, 1, 1.1, '1.1'); foreach ($inputs as $input) { $output = key(array($input => NULL)); printf("Input: %s\n", var_export($input, TRUE)); printf("Output: %s\n\n", var_export($output, TRUE)); }
Output for git.master, git.master_jit, rfc.property-hooks
Input: NULL Output: '' Input: 0 Output: 0 Input: 1 Output: 1 Deprecated: Implicit conversion from float 1.1 to int loses precision in /in/taXU1 on line 4 Input: 1.1 Output: 1 Input: '1.1' Output: '1.1'

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