php在数组开头插入元素函数array_unshift()用法
在未知道这个函数前我们要在数据前面插入一些元素觉得很复杂，要利用遍历来操作，要不就插入到后面了，下面我们分享一个实用的array_unshift()函数，它可以解决一切问题。
先不说什么先看实例
#1 array_unshift() example
| 代码如下 | 复制代码 |
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