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strlen () returns the number of bytes rather than the number of characters in a string. See Also. count () - Counts all elements in an array or in a Countable object. grapheme_strlen () - Get string length in grapheme units. iconv_strlen () - Returns the character count of string. mb_strlen () - Get string length. Improve This Page.
- Count
[Editor's note: array at from dot pl had pointed out that...
- Grapheme Strlen
Grapheme Strlen - PHP: strlen - Manual
- Iconv Strlen
Iconv Strlen - PHP: strlen - Manual
- Substr
Parameters. string. The input string. offset. If offset is...
- Str replace
Parameters. If search and replace are arrays, then...
- Number format
Version Description; 8.0.0: Prior to this version,...
- Implode
Implode - PHP: strlen - Manual
- Ucfirst
Ucfirst - PHP: strlen - Manual
- Count
Returns the length of a string (in bytes) on success, and 0 if the string is empty: PHP Version: 4+
strlen() returns the number of bytes rather than the number of characters in a string.
They can covert string to byte array and vice versa. Take byteStr2byteArray() as an example: <?php function byteStr2byteArray($s) { return array_slice(unpack("C*", "\0".$s), 1); } $msg = "abcdefghijk"; $byte_array = byteStr2byteArray($msg); for($i=0;$i<count($byte_array);$i++) { printf("0x%02x ", $byte_array[$i]); } ?>
Use the PHP strlen () function to get the number of bytes of a string. Use the PHP mb_strlen () function to get the number of characters in a string with a specific encoding.
strlen returns the number of bytes rather than the number of characters in a string. Note: strlen returns null when executed on arrays, and an E_WARNING level error is emitted.
20 lut 2024 · The strlen() function is one of the most ubiquitous string functions in PHP. It returns the length of a string in bytes or characters. In this comprehensive guide, we‘ll cover all aspects of strlen(): Syntax and behavior. Use cases and examples. Performance and efficiency. Comparison with other functions. Applying validation rules.
