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PHP查找与搜索数组元素方法总结_PHP

May 30, 2016 am 08:45 AM
php search array elements Find

本文实例讲述了PHP查找与搜索数组元素方法。分享给大家供大家参考。具体分析如下:

查找、筛选与搜索数组元素是数组操作的一些常见功能。下面来介绍一下几个相关的函数。

in_array()函数

in_array()函数在一个数组汇总搜索一个特定值,如果找到这个值返回true,否则返回false。其形式如下:

代码如下:

apple's color is red

array_search()函数

array_search()函数在一个数组中搜索一个指定的值,如果找到则返回相应的键,否则返回false。其形式如下:

代码如下:

watermelon was founded on green.

array_keys()函数

array_keys()函数返回一个数组,其中包含所搜索数组中找到的所有键。其形式如下:

代码如下:

Array ( [0] => apple [1] => banana [2] => watermelon )

array_values()函数

array_values()函数返回一个数组中的所有值,并自动为返回的数组提供数值索引。其形式如下:

代码如下:

Array ( [0] => red [1] => yellow [2] => green )

希望本文所述对大家的php程序设计有所帮助。

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