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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.
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.
Manipulating string case is crucial in PHP for various tasks such as data processing, text formatting, and standardizing user inputs. This tutorial will guide you on changing string cases in PHP, transforming strings to uppercase, lowercase, and proper case using PHP's built-in functions.
10 sty 2024 · In PHP, converting a string to different case formats is an often-needed operation, whether to ensure data consistency for storage, enhance readability, or for comparison purposes. PHP comes with built-in functions that make changing the case of a string a straightforward task.
19 lut 2024 · Using mb_strtolower() function. PHP mb_strtolower() performs case folding on a string, allowing accurate lowercase conversion for multibyte encodings like UTF-8. $string = "GeeksForGeeks"; $lowercaseString = mb_strtolower($string, 'UTF-8'); echo "Lowercase using mb_strtolower(): $lowercaseString";
In particular, the uppercase 'A' with tilde, common in 2-byte UTF-8 characters, is converted to lowercase 'a' with tilde. This can be handled correctly by: $str = mb_strtolower($str, mb_detect_encoding($str)); Or if you know your data is UTF-8, just use the string "UTF-8" as the second argument.
Description. mb_convert_case (string $string, int $mode, ? string $encoding = null): string. Performs case folding on a string, converted in the way specified by mode. Parameters. string. The string being converted. mode. The mode of the conversion.
