一个比较难的有关问题 如何循环读取变量的值

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Release: 2016-06-13 11:52:54
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一个比较难的问题 怎么循环读取变量的值
在一个php文件里面有
变量1
变量2
也就是 $i1 $i2
然后我想用for 循环读取出来
for($x=1;$x//难题部分
}

php 不能在php里面修改变量的名称循环读取出来 
请问要怎么用for循环出php文件里面的$i1 $i2.. 要怎么循环出文件里面的变量
------解决方案--------------------

for($x=1;$x<=2;$x++){<br />  echo ${'i' . $i};<br />}
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