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<?php $testArray = array(); $height=$testArray['height']; echo('$height after getting from array: '.$height); $height=intval($height); echo('$height after calling intval: '.$height);
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Warning: Undefined array key "height" in /in/lie8j on line 4 $height after getting from array: $height after calling intval: 0
Output for 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.31, 7.4.0 - 7.4.33
Notice: Undefined index: height in /in/lie8j on line 4 $height after getting from array: $height after calling intval: 0
Output for 7.3.32 - 7.3.33
$height after getting from array: $height after calling intval: 0
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17
Notice: Undefined index: height in /in/lie8j on line 4 $height after getting from array: $height after calling intval: 0

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