HH\Lib\Str\length

Meta Engineer?

This is available as Str\length in the www repository.

Returns the length of the given string represented in number of bytes

namespace HH\Lib\Str;

function length(
  string $string,
): int;

This function is O(1): it always returns the number of bytes in the string, even if a byte is null. For example, Str\length("foo\0bar") is 7, not 3.

See Str\length_l() for the length in characters.

Guide

Parameters

  • string $string

Returns

  • int

Examples

$result = Str\length("example_string");
echo($result);
//result: 14

$result = Str\length("");
echo($result);
//result: 0