文字
CONCAT
PHP code
<?php
echo "hello" . "world" ;
?> PHP opcodes
Function name: (null)
Compiled variables: none
| line | # | op | fetch | ext | return | operands |
|---|---|---|---|---|---|---|
| 6 | 0 | CONCAT | ~0 | 'hello','world' | ||
| 1 | ECHO | ~0 | ||||
| 7 | 2 | RETURN | 1 |
用户评论:
[#1] shadiadiph at yahoo dot com [2012-06-07 15:37:59]
Concat . is a very useful tool in php while creating long strings or creating a set of data for example;
<?php
// GIVE THE STRING A NAME
$mystring="";
// NOW USE CONCAT . TO BUILD THE STRING
$mystring.="hello,";
$mystring.="world";
echo $mystring;
?>
output will be
hello,world