1、值赋值：将赋值表达式的值复制到变量。例子：
| 代码如下 | 复制代码 |
$number=15; |
|
2.创建数组有变量赋值和调用函数两种方法，这里先讲前者。
使用变量赋值方法很简单，直接给一个数组变量赋值即可。
实例：
| 代码如下 | 复制代码 |
$lang[]="php"; |
|
三个赋值语句产生的数组内容：
0=>php
1=>html
2=>css
3、引用赋值：所创建的变量与另一个变量引用的内容相同。因此如果多个变量引用了同一内容，修改其中任一个变量，在其余的变量上都会有反映。在等号后面加一个&符号（$val2=& $val1）就可以完成引用赋值或者将&符号放在引用的变量前面（$val2= &$val1）：
| 代码如下 | 复制代码 |
|
$val1="hello"; $val1 is goodby |
|
foreach引用赋值的问题
代码：
| 代码如下 | 复制代码 |
|
$a = array(
} print_r($a); |
|
----------------------
仔细想想，其实是简单的引用问题，第一次foreach完毕,$v实际是$a['c']的引用，循环时，每次对$v的赋值都会会改变$a['c']的值，而最后一次对$v的赋值是$v=$a['c']，$a['c']在上一次被赋值为$a['b']，所以会会出现上述情况
教程链接:
随意转载~但请保留教程地址★
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