【问题标题】:Preg split or preg match to extract from string with known and constant patternPreg 拆分或 preg 匹配以从具有已知和恒定模式的字符串中提取
【发布时间】:2015-07-17 04:41:28
【问题描述】:
我有一个充满产品名称的数据库,所有这些都遵循严格且相同的命名模式,例如 European 222/555/111 obtained
我想为表中的每一行运行一个小 php 脚本并提取部分222/555/111 中的 3 个子字符串并将这三个子字符串添加到单独的列中,但我无法进行提取。我应该使用 preg_split 还是 preg_match?
我的字符串都以'European'这个词开头,然后是一个空格,然后我需要用/分隔的三个选项,这些也可能只有2个字符,比如
European 96/43/55c strings strings
应该有
$option1 = 222
$option2 = 555
$option3 = 111
【问题讨论】:
标签:
php
preg-match
preg-match-all
preg-split
【解决方案1】:
我会使用preg_match:
$string = 'European 222/555/111 obtained';
if (preg_match('~European ([^/]+)/([^/]+)/([^/\s]+)~', $string, $matches)) {
print_r($matches);
}
输出:
Array
(
[0] => European 222/555/111
[1] => 222
[2] => 555
[3] => 111
)
说明:
~ : regex delimiter
European\s+ : literally "European" followed by one or more space
([^/]+) : match everything that is not a slash and store in group 1
/ : a slash
([^/]+) : match everything that is not a slash and store in group 2
/ : a slash
([^/\s]+) : match everything that is not a slash or a space and store in group 3
~ : regex delimiter