How can PHP functions be utilized to check for a complete match with a regex pattern?

To check for a complete match with a regex pattern in PHP, you can use the `preg_match()` function. This function will return 1 if the pattern matches the entire string, and 0 if it does not. You can use this return value to determine if there is a complete match with the regex pattern. 

$pattern = "/^regex_pattern$/";
$string = "input_string";

if (preg_match($pattern, $string)) {
    echo "Complete match found!";
} else {
    echo "No complete match found.";
}

Keywords

PHP functions regex pattern match utilization

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