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Definition and Usage. The strtolower () function converts a string to lowercase. Note: This function is binary-safe. Related functions: strtoupper () - converts a string to uppercase. lcfirst () - converts the first character of a string to lowercase. ucfirst () - converts the first character of a string to uppercase.
Introduction to the PHP strtolower () function. The strtolower() function accepts a string and returns a new string with all alphabetic characters converted to lowercase. Here’s the syntax of the strtolower() function: The strtolower() uses the current locale to determine alphabetic characters.
6 lip 2023 · In this example, we convert both the user input stored in `$userInput` and the value retrieved from the database stored in `$dbValue` to lowercase using `strtolower()`. Then, we compare the lowercase versions of the strings to check for a match.
9 wrz 2024 · The strtolower () function is used to convert a string into lowercase. Syntax: string strtolower( $string ) Parameters: The only parameter to this function is a string that is to be converted to lower-case. Return value: This function returns a string in which all the alphabets are lower-case. Examples:
strtolower (string $string): string. Returns string with all ASCII alphabetic characters converted to lowercase. Bytes in the range "A" (0x41) to "Z" (0x5a) will be converted to the corresponding lowercase letter by adding 32 to each byte value.
The strtolower() function converts a string to lowercase. The following table summarizes the technical details of this function. Return Value: Returns the modified string. Version: PHP 4+.
If you want to convert uppercase English alphabet in a string to lowercase, use strtolower() function. The name “strtolower” denotes “String to Lower(case)”.
