我有以下的URL:www.exampe.com/id/1234,我希望能取得直径值的比照,该参数是1234<>。
审判
<?php
$url = "www.exampe.com/id/1234";
preg_match("/d+(?<=id/[d])/",$url,$matches);
print_r($matches);
?>
和dtArray (0) => 1 >
,其中仅显示第一位数字。
问题在于,我如何用正面的眼光向各位数位数重写reg?
我有以下的URL:www.exampe.com/id/1234,我希望能取得直径值的比照,该参数是1234<>。
审判
<?php
$url = "www.exampe.com/id/1234";
preg_match("/d+(?<=id/[d])/",$url,$matches);
print_r($matches);
?>
和dtArray (0) => 1 >
,其中仅显示第一位数字。
问题在于,我如何用正面的眼光向各位数位数重写reg?
为什么不只读preg_match (id/(d+)) 、 url、$matches(matches)
而没有发现任何问题? 其结果将载于$matches?
。
顺便提一下的正确表述是(?<=id/)d+>
,但除非你需要,否则你真的应该看一看。
另一种备选案文是(id/Kd+)
(K
)。 背书起步,常常被用作一种更强大的眼光。
我同意尼尼科委员会的看法,即你不需要看望;但是,既然你要求,你可以书写。
<?php
$url = "www.exampe.com/id/1234";
preg_match("/(?<=id/)d+/",$url,$matches);
print_r($matches);
?>
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