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  1. <?php
  2.   $arr = array(array(1, 3, 5));
  3.   $sum = array_sum($arr[0]);
  4.   echo $sum;
  5. ?>
Success #stdin #stdout 0.01s 20568KB
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language:

						
PHP (php 7.3.5)

					

					

						
created:
								
						
11 years ago

					

					

						
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