PHP - Manual: ISSET_ISEMPTY_DIM_OBJ
2024-12-21
<?php
/*
* Tests if the entry of an array is set or not.
* opcode number: 115
*/
if(isset($a[0])) return 0;
?>
Function name: (null)
Compiled variables: !0=$a
line | # | op | fetch | ext | return | operands |
---|---|---|---|---|---|---|
6 | 0 | ZEND_ISSET_ISEMPTY_DIM_OBJ | 1 | ~0 | !0,0 | |
1 | JMPZ | ~0,->4 | ||||
2 | RETURN | 0 | ||||
3 | JMP | ->4 | ||||
7 | 4 | RETURN | 1 |
官方地址:https://www.php.net/manual/en/internals2.opcodes.isset-isempty-dim-obj.php