如何使用PHP删除动态内容中的字符串？ [重复]
问题描述：
This question already has an answer here:
- How to remove all numbers from string? 5 answers
I have a dynamic strings that outputs,
test-only
test-only-1
test-only-12
sample-only-2
sample-test-55
etc...
I would like to ask, how can i remove -1,-12,-2, -55 dynamically using php?
Thanks!
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此问题已经存在 这里有一个答案： p>
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如何从字符串中删除所有数字？
5 answers
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我有一个输出的动态字符串， p>
测试仅\ NTEST-仅-1 \ NTEST-仅-12 \ NSample个-仅-2 \ NSample个测试-55 \ NETC ... 代码> PRE>
我想问一下，如何使用php动态删除-1，-12，-2，-55？ p>
谢谢！ p> div>
答
preg_replace('/-[0-9]+$/', '', $string);
答
This will work when all of the input is on the same line.
preg_replace('/([a-z\-]+)(-[0-9]+)/', '$1', $data);
With input on multiple lines it would be best to anchor to the end of the string
preg_replace('/^([a-z\-]+)(-[0-9]+)$/', '$1', $data);
答
You can use preg_replace to replace with a regex. $string in the example below would be the text you are trying to fix. This will replace - and /d+ will replace numeric characters.
$pattern = '/\-/d+$/i';
print preg_replace($pattern, '', $string);