A small mistake that is easy to overlook, have you ever made it?
Release： 2016-07-25 09:09:23
Original
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foreach array value modification
- /**
- * Note the difference in foreach values
- */
- $arr = array(1,2,3,4);
- echo "foreach traverses array 1:
";
- foreach( $arr as $val) {
- $val = $val*2;
- }
-
- var_dump($arr);
-
- echo "
foreach traverses array 2:
";
- foreach( $arr as &$val) {
- $val = $val*2;
- }
-
- var_dump($arr);
- /*end of php*/
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