Internals2/opcodes/unset-dim-Phpdoc专题
UNSET_DIM
PHP code
<?php
/*
* Unset the entry of array-value, which is specified by index, and store the original element value into "result".
* opcode number: 75
*/
$a = array(1,2,3);
unset($a[0]);
?>PHP opcodes
Function name: (null)
Compiled variables: !0=$a
| line | # | op | fetch | ext | return | operands |
|---|---|---|---|---|---|---|
| 6 | 0 | INIT_ARRAY | ~0 | 1 | ||
| 1 | ADD_ARRAY_ELEMENT | ~0 | 2 | |||
| 2 | ADD_ARRAY_ELEMENT | ~0 | 3 | |||
| 3 | ASSIGN | !0,~0 | ||||
| 7 | 4 | UNSET_DIM | $2 | !0,0 | ||
| 8 | 5 | RETURN | 1 |