## 判断数组是否相等 > array_eq(array $arr1 = [],array $arr2 = []) 判断两个数组的长度、键值对是否一一对应且相等，返回值为`bool`类型。 | 参数 | 类型 | 必须 | 说明 | | --- | --- | --- | --- | | `$arr1 ` | array | 是 | 数组1 | | `$arr2 ` | array | 是 | 数组2 | > 示例： ~~~ $arr1=['qwe'=>'qwetrqe','efwevwvw'=>'aevwhvbw','nvuebrv'=>'cjwhbuw']; $arr2=['qwe'=>'qwetrqe','nvuebrv'=>'cjwhbuw','efwevwvw'=>'aevwhvbw']; $arr3=['qwetrqe','cjwhbuw','aevwhvbw']; var_dump(array_eq($arr1,$arr2)); // true var_dump(array_eq($arr1,$arr3)); // false ~~~