is_boolis_buffer
(PHP 6 >= 6.0.0)
is_buffer — Finds whether a variable is a native unicode or binary string
Descrierea
Finds whether the given variable is a native unicode or binary string.
Parametri
- var
-
The variable being evaluated.
Valorile întroarse
Returns TRUE if var is a native unicode or binary string, FALSE otherwise.
Exemple
Example #1 is_buffer() example
<?php
// Declare some variables with different types
$types = array(
'unicode' => 'Unicode string',
'binary' => b'Binary string',
'resource' => fopen('php://stdin', 'r'),
'integer' => 42
);
// Test which types thats a buffer
foreach($types as $type => $value)
{
if(is_buffer($value))
{
echo $type . ' is a either a unicode or binary string';
}
else
{
echo $type . ' is not a buffer value';
}
echo PHP_EOL;
}
?>
Exemplul de mai sus va afişa:
unicode is a either a unicode or binary string binary is a either a unicode or binary string resource is not a buffer value integer is not a buffer value
Vedeţi de asemenea
- is_binary() - Finds whether a variable is a native binary string
- is_string() - Determină dacă tipul variabilei este string
- is_unicode() - Finds whether a variable is a unicode string
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