What are the potential pitfalls of using strtok() to parse strings in PHP?

Potential pitfalls of using strtok() to parse strings in PHP include the fact that it modifies the original string, making it difficult to backtrack or re-parse the string. Additionally, strtok() is not thread-safe and can lead to unexpected behavior when used in a multi-threaded environment. To avoid these issues, it is recommended to use the explode() function in PHP, which returns an array of substrings based on a specified delimiter. 

// Using explode() to parse a string in PHP
$string = "Hello,World,PHP";
$delimiter = ",";
$parts = explode($delimiter, $string);

foreach ($parts as $part) {
    echo $part . "\n";
}

Keywords

strtok string parsing delimiter strtok_r strtok function

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