How can PHP developers efficiently separate words in a string based on a specific criteria?

To efficiently separate words in a string based on a specific criteria, PHP developers can use the `preg_split()` function with a regular expression pattern that matches the criteria. This function will split the string into an array of words based on the specified criteria. 

$string = "Hello, world! This is a sample string.";
$words = preg_split('/[\s,]+/', $string);

foreach ($words as $word) {
    echo $word . "\n";
}

Keywords

PHP explode string manipulation delimiter array

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