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run code in 150+ php & hhvm versions
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<? $input = array("pattern-red.png","pattern-pink.png","pattern-blue.png","pattern-yellow.png","pattern-green.png"); $rand_keys = array_rand($input, 1); $bg=$input[$rand_keys[0]] . "\n"; echo "bg: ".$bg; ?>
Output for 5.4.34 - 7.1.0
Notice: Undefined index: in /in/2JVd8 on line 5 bg:
Output for 4.3.0 - 5.4.32
<? $input = array("pattern-red.png","pattern-pink.png","pattern-blue.png","pattern-yellow.png","pattern-green.png"); $rand_keys = array_rand($input, 1); $bg=$input[$rand_keys[0]] . "\n"; echo "bg: ".$bg; ?>