Small problem caused by array foreach

Code

$arr112345 ];$arr2'a''b''c''d''e' ];$arr3 = [];foreach ($arr1as$v){    $v10; }foreach ($arr2as$k$v){    //举例$v$v$arr1$k ];    $arr3$k$v;}echo implode(', '$arr1"\n" . implode(', '$arr2"\n" . implode(', '$arr3);

Run

11121314, eea, b, c, d, ea11, b12, c13, d14, ee

Result

The problem occurs because after the end of the first cycle, $v no release is made

Solve

This problem does not occur until the loop is passed and the unset() variable is released.

Between two cycles, add unset ($v);

1112131415a, b, c, d, ea11, b12, c13, d14, e15

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The above introduces the small problem caused by the array foreach, including the contents of the content, I hope that the PHP tutorial interested in a friend helpful.

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