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Php regex, extract phone numbers from the string?

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[开发(php) 所属分类 开发(php) | 发布者 店小二05 | 时间 2018 | 作者 红领巾 ] 0人收藏点击收藏

i am having a small problem with my regex which i use to extract phone numbers from a strong

<php $output = "here 718-838-3586 there 1052202932 asdas dasdasd 800-308-4653 dasdasdasd 866-641-6949800-871-0999"; preg_match_all('/\b[0-9]{3}\s*[-]?\s*[0-9]{3}\s*[-]?\s*[0-9]{4}\b/',$output,$matches); echo '<pre>'; print_r($matches[0]); ?>

output

Array ( [0] => 718-838-3586 [1] => 1052202932 [2] => 800-308-4653 [3] => 866-641-6949 [4] => 800-871-0999 )

this work fine but it returns 1052202932 as one of result which i don't need .

actually i don't know where is the missing part in my pattern .

The ? after each [-] is making the - optional. If you want it to be required you can just remove the ? which will make it required. Also, [-] is equivalent to - so I got rid of the unnecessary character class: preg_match_all('/\b[0-9]{3}\s*-\s*[0-9]{3}\s*-\s*[0-9]{4}\b/',$output,$matches); You can also replace all of the [0-9] with \d to shorten it a bit further:

preg_match_all('/\b\d{3}\s*-\s*\d{3}\s*-\s*\d{4}\b/',$output,$matches);

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