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<?php $tests = [ 'Test', 'test', 'test1', '1test', 'test!' ]; foreach ($tests as $test) { echo "$test: " , (ctype_lower($test) ? 'true' : 'false') , "\n"; }
Output for git.master, git.master_jit, rfc.property-hooks
Test: false test: true test1: false 1test: false test!: false

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