{"id":21061,"date":"2024-03-15T21:26:46","date_gmt":"2024-03-15T21:26:46","guid":{"rendered":"https:\/\/www.silicloud.com\/blog\/what-is-the-usage-of-php-preg_match\/"},"modified":"2024-03-21T19:35:14","modified_gmt":"2024-03-21T19:35:14","slug":"what-is-the-usage-of-php-preg_match","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/blog\/what-is-the-usage-of-php-preg_match\/","title":{"rendered":"What is the usage of php preg_match?"},"content":{"rendered":"

The preg_match function is used to match regular expressions in a string.<\/p>\n

Grammar: the rules governing the structure of a language.<\/p>\n

preg_match($pattern, $subject, $matches)\r\n<\/code><\/pre>\n
parameters:<\/p>\n
    \n
  1. $pattern: regular expression pattern.<\/li>\n
  2. $subject: the string that needs to be matched.<\/li>\n
  3. $matches: an array used to store the results of a match.<\/li>\n<\/ol>\n
    Return value:<\/p>\n
      \n
    1. If a match is successful, return 1 (true); if a match fails, return 0 (false).<\/li>\n<\/ol>\n
      I am not in the mood to go out tonight. <\/p>\n
      I don’t feel like going out tonight.<\/p>\n
      $pattern<\/span> = '\/\\d+\/'<\/span>;  \/\/ \u5339\u914d\u8fde\u7eed\u7684\u6570\u5b57<\/span>\r\n$subject<\/span> = 'abc123def456'<\/span>;\r\n$matches<\/span> = array<\/span>();\r\n\r\nif<\/span> (preg_match<\/span>($pattern<\/span>, $subject<\/span>, $matches<\/span>)) {\r\n    echo<\/span> \"\u5339\u914d\u6210\u529f\uff01\"<\/span>;\r\n    echo<\/span> \"\u5339\u914d\u5230\u7684\u6570\u5b57\u4e3a\uff1a\"<\/span> . $matches<\/span>[0<\/span>];\r\n} else<\/span> {\r\n    echo<\/span> \"\u5339\u914d\u5931\u8d25\uff01\"<\/span>;\r\n}\r\n<\/code><\/pre>\n
      output:<\/p>\n
      \u5339\u914d\u6210\u529f\uff01\r\n\u5339\u914d\u5230\u7684\u6570\u5b57\u4e3a\uff1a123\r\n<\/code><\/pre>\n
      In the example above, the regular expression pattern \/\\d+\/ matches consecutive numbers. You can use the preg_match function to store the matching result in the $matches array, with the matched number being $matches[0].<\/p>\n","protected":false},"excerpt":{"rendered":"
      The preg_match function is used to match regular expressions in a string. Grammar: the rules governing the structure of a language. preg_match($pattern, $subject, $matches) parameters: $pattern: regular expression pattern. $subject: the string that needs to be matched. $matches: an array used to store the results of a match. Return value: If a match is successful, […]<\/p>\n","protected":false},"author":13,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_import_markdown_pro_load_document_selector":0,"_import_markdown_pro_submit_text_textarea":"","footnotes":""},"categories":[1],"tags":[],"class_list":["post-21061","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"\nWhat is the usage of php preg_match? - Blog - Silicon Cloud<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.silicloud.com\/blog\/what-is-the-usage-of-php-preg_match\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"What is the usage of php preg_match?\" \/>\n<meta property=\"og:description\" content=\"The preg_match function is used to match regular expressions in a string. 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