PHP查找与搜索数组元素方法总结_PHP
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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