Are there any online tools or resources available to test and troubleshoot regular expressions in PHP code?

Regular expressions can be complex and difficult to debug, especially when used in PHP code. One way to test and troubleshoot regular expressions in PHP code is to use online tools or resources specifically designed for this purpose. These tools allow you to input your regular expression pattern and test it against sample strings to see if it matches correctly. Some popular online tools for testing regular expressions in PHP code include regex101.com, regexr.com, and phpliveregex.com. 

$pattern = '/[0-9]+/';
$string = 'abc123def456ghi';

if (preg_match($pattern, $string)) {
    echo 'Match found!';
} else {
    echo 'No match found.';
}

Keywords

online tools resources regular expressions PHP code troubleshoot

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