PYTHON is_binary

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PHP is_binary

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is_binary

(PHP 6 >= 6.0.0)

is_binary — Finds whether a variable is a native binary string

Description

bool is_binary ( mixed $var )

Finds whether the given variable is a native binary string.

Parameters

var

The variable being evaluated.

Return Values

Returns TRUE if var is a native binary string, FALSE otherwise.

Examples

Example #1 is_binary() example

<?php
// Declare a unicode string
$unicode = 'This is a unicode string';

// Declare a binary string using the 'b' prefix
// available as of PHP 5.2.1, but it will only have 
// effect as of PHP 6.0.0
$binary = b'This is a binary string';

var_dump(is_binary($unicode), is_binary($binary));
?>

The above example will output:

bool(false)
bool(true)

See Also

  • is_buffer() - Finds whether a variable is a native unicode or binary string
  • is_string() - Find whether the type of a variable is string
  • is_unicode() - Finds whether a variable is a unicode string

Variable handling Functions
PHP Manual