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PHP - Manual: BOOL - 互联网笔记

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PHP官方手册 - 互联网笔记

PHP - Manual: BOOL

2025-06-09

BOOL

PHP code

<?php
/*
 * convert value1 to boolean and store in result??????????
 * opcode number: 52
 */
if (|| || 1) echo "foo";
//$a = true;
//if($a) echo "foo";
?>

PHP opcodes

Function name: (null)

Compiled variables: none

line#op fetchextreturn operands
60 JMPNZ_EX   ~0 1,->2
 1 BOOL   ~0 2
 2 JMPNZ_EX   ~0 ~0,->4
 3 BOOL   ~0 1
 4 JMPZ     ~0,->7
 5 ECHO     'foo'
 6 JMP     ->7
97 RETURN     1
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官方地址:https://www.php.net/manual/en/internals2.opcodes.bool.php

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