Which of the following functions in PHP can be used to manipulate strings?
- strlen()
- str_replace()
- substr()
- All of the above
All of the given options are functions in PHP that can be used to manipulate strings. The strlen() function is used to find the length of a string. The str_replace() function is used to replace occurrences of a substring in a string. The substr() function is used to extract a portion of a string. These functions provide different ways to manipulate and work with strings in PHP. Learn more: https://www.php.net/manual/en/ref.strings.php
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