Example to explain the use of PHP function preg_grep()

Home

Backend Development

PHP Tutorial

Example to explain the use of PHP function preg_grep()_PHP tutorial

Jul 15, 2016 pm 01:30 PM

grep php for introduce use function us of Example explain

The PHP function preg_grep() we introduce to you today is one of the many powerful functions in the PHP language. I hope you can have a deep understanding of this function after reading it.

Function prototype: array preg_grep (string $pattern, array $input)
PHP function preg_grep() returns an array, which includes the cells in the $input array that match the given $pattern pattern . Preg_grep() also only performs a match for each element in the input array $input. The example given in Listing 6.3 simply illustrates the use of the preg_grep() function.

PHP function preg_grep() code 6.3 Array query matching

<ol class="dp-xml"><li class="alt"><span class="tag">< ?php </li><li>$<span class="attribute">subjects = <span class="attribute-value">array( </li><li class="alt">"Mechanical Engineering", "Medicine", </li><li>"Social Science", "Agriculture", </li><li class="alt">"Commercial Science", "Politics" </li><li>); </li><li class="alt">//匹配所有仅由有一个单词组成的科目名 </li><li>$alonewords = preg_grep("/^[a-z]*$/i" , $subjects); </li><li class="alt">?> </li></ol>

Copy after login

Through the above code example of PHP function preg_grep(), I hope it can deepen the impression for readers.

Statement of this Website

The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn