这里有新鲜出炉的 PHP 设计模式,程序狗速度看过来!
PHP(外文名: Hypertext Preprocessor,中文名:"超文本预处理器")是一种通用开源脚本语言。语法吸收了 C 语言、Java 和 Perl 的特点,入门门槛较低,易于学习,使用广泛,主要适用于 web 开发领域。PHP 的文件后缀名为 php。
这篇文章主要介绍了 php 数组实现根据某个键值将相同键值合并生成新二维数组的方法, 涉及 php 数组的遍历、赋值相关运算技巧, 需要的朋友可以参考下
本文实例讲述了 php 数组实现根据某个键值将相同键值合并生成新二维数组的方法。分享给大家供大家参考,具体如下:
源数据:
- $infos = array(
- array(
- 'a' => 36,
- 'b' => 'xa',
- 'c' => '2015-08-28 00:00:00',
- 'd' => '2015/08/438488a00b3219929282e3652061c2e3.png'
- ),
- array(
- 'a' => 3,
- 'b' => 'vd',
- 'c' => '2015-08-20 00:00:00',
- 'd' => '2015/08/438488a00b3219929282e3652061c2e3.png'
- ),
- array(
- 'a' => 6,
- 'b' => 'wwe',
- 'c' => '2015-08-28 00:00:00',
- 'd' => '2015/08/438488a00b3219929282e3652061c2e3.png'
- ),
- array(
- 'a' => 36,
- 'b' => 'se',
- 'c' => '2015-08-28 00:00:00',
- 'd' => '2015/08/438488a00b3219929282e3652061c2e3.png'
- ),
- array(
- 'a' => 6,
- 'b' => 'aw',
- 'c' => '2015-08-28 00:00:00',
- 'd' => '2015/08/438488a00b3219929282e3652061c2e3.png'
- ),
- array(
- 'a' => 36,
- 'b' => 'bv',
- 'c' => '2015-08-28 00:00:00',
- 'd' => '2015/08/438488a00b3219929282e3652061c2e3.png'
- ),
- array(
- 'a' => 12,
- 'b' => 'xx',
- 'c' => '2015-08-27 00:00:00',
- 'd' => '2015/08/438488a00b3219929282e3652061c2e3.png'
- )
- );
处理要求:将数组中 a 相同的二维数组合并到一个数组中,生成一个新的数组
代码:
- <?php
- $result= array();
- foreach ($infos as $key => $info) {
- $result[$info['a']][] = $info;
- }
- print_r($result);
输出:
- Array
- (
- [36] => Array
- (
- [0] => Array
- (
- [a] => 36
- [b] => xa
- [c] => 2015-08-28 00:00:00
- [d] => 2015/08/438488a00b3219929282e3652061c2e3.png
- )
- [1] => Array
- (
- [a] => 36
- [b] => se
- [c] => 2015-08-28 00:00:00
- [d] => 2015/08/438488a00b3219929282e3652061c2e3.png
- )
- [2] => Array
- (
- [a] => 36
- [b] => bv
- [c] => 2015-08-28 00:00:00
- [d] => 2015/08/438488a00b3219929282e3652061c2e3.png
- )
- )
- [3] => Array
- (
- [0] => Array
- (
- [a] => 3
- [b] => vd
- [c] => 2015-08-20 00:00:00
- [d] => 2015/08/438488a00b3219929282e3652061c2e3.png
- )
- )
- [6] => Array
- (
- [0] => Array
- (
- [a] => 6
- [b] => wwe
- [c] => 2015-08-28 00:00:00
- [d] => 2015/08/438488a00b3219929282e3652061c2e3.png
- )
- [1] => Array
- (
- [a] => 6
- [b] => aw
- [c] => 2015-08-28 00:00:00
- [d] => 2015/08/438488a00b3219929282e3652061c2e3.png
- )
- )
- [12] => Array
- (
- [0] => Array
- (
- [a] => 12
- [b] => xx
- [c] => 2015-08-27 00:00:00
- [d] => 2015/08/438488a00b3219929282e3652061c2e3.png
- )
- )
- )
希望本文所述对大家 PHP 程序设计有所帮助。
来源: http://www.phperz.com/article/17/0810/340101.html