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PHP - Manual: BRK - 互联网笔记

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PHP官方手册 - 互联网笔记

PHP - Manual: BRK

2025-06-06

BRK

PHP code

<?php
/*
 * ???  End of a case block exists the current switch block.  Followed by JMP?
 * opcode number: 50
 */
$x 0;
while(
1) {
    if(
$x == 0) break;
}
?>

PHP opcodes

Function name: (null)

Compiled variables: !0=$x

line#op fetchextreturn operands
60 ASSIGN     !0,0
71 JMPZ     1,->7
82 IS_EQUAL   ~1 !0,0
 3 JMPZ     ~1,->6
 4 BRK     1
 5 JMP     ->6
96 JMP     ->1
107 RETURN     1
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官方地址:https://www.php.net/manual/en/internals2.opcodes.brk.php

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