DocumentationHSLReferenceFunctionHH\Lib\Str\length

HH\Lib\Str\length

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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

String

Parameters

string $string

Returns

int

Examples

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

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