PHP String Functions
- strlen(); – Returns the length of a string.
- strpos(); – Finds the position of the first occurrence of a substring in a string.
- substr(); – Returns a part of a string.
- str_replace(); – Replaces all occurrences of a search string with a replacement string.
- strtolower(); – Converts a string to lowercase.
- strtoupper(); – Converts a string to uppercase.
- trim(); – Strips whitespace (or other characters) from the beginning and end of a string.
- ucfirst(); – Converts the first character of a string to uppercase.
- str_repeat(); – Repeats a string a specified number of times.
- strrev(); – Reverses a string.
- strcmp – Compares two strings.
- strcasecmp – Case-insensitive string comparison.
These PHP string functions provide a wide range of capabilities for manipulating and working with strings, covering tasks from simple transformations to more complex operations such as encoding, decoding, and comparison. Each function serves a specific purpose and can be used according to the requirements of your PHP application.