テストコード
$f = tempnam(‘/tmp/’,’test’);
$testme = array(
null,
true,
false,
array(),
0,
1,
0.10,
1.123,
”,
‘0’,
‘1’,
’10’,
‘0.10’,
‘1.123’,
‘1,234,567’,
‘ 1’,
‘1 ‘,
‘ 1 ‘,
‘Hello’,
new stdClass(),
fopen($f,’w’),
);$result = array();
foreach($testme as $value){$tmp = array();
$tmp[‘value’] = $value;$tmp[‘isset’] = isset($value);
$tmp[‘null’] = is_null($value);
$tmp[’empty’] = empty($value);$tmp[‘bool’] = is_bool($value);
$tmp[‘array’] = is_array($value);
$tmp[‘string’] = is_string($value);
$tmp[‘int’] = is_int($value);
$tmp[‘float’] = is_float($value);
$tmp[‘numeric’] = is_numeric($value);$tmp[‘scalar’] = is_scalar($value);
$tmp[‘object’] = is_object($value);
$tmp[‘resource’] = is_resource($value);$tmp[‘true’] = ($value) ? true : false;
$tmp[‘false’] = (!$value) ? true : false;$result[] = $tmp;
}
fclose($value);
@unlink($f);var_dump($result);
結果
array (size=21) 0 => array (size=15) 'value' => null 'isset' => boolean false 'null' => boolean true 'empty' => boolean true 'bool' => boolean false 'array' => boolean false 'string' => boolean false 'int' => boolean false 'float' => boolean false 'numeric' => boolean false 'scalar' => boolean false 'object' => boolean false 'resource' => boolean false 'true' => boolean false 'false' => boolean true 1 => array (size=15) 'value' => boolean true 'isset' => boolean true 'null' => boolean false 'empty' => boolean false 'bool' => boolean true 'array' => boolean false 'string' => boolean false 'int' => boolean false 'float' => boolean false 'numeric' => boolean false 'scalar' => boolean true 'object' => boolean false 'resource' => boolean false 'true' => boolean true 'false' => boolean false 2 => array (size=15) 'value' => boolean false 'isset' => boolean true 'null' => boolean false 'empty' => boolean true 'bool' => boolean true 'array' => boolean false 'string' => boolean false 'int' => boolean false 'float' => boolean false 'numeric' => boolean false 'scalar' => boolean true 'object' => boolean false 'resource' => boolean false 'true' => boolean false 'false' => boolean true 3 => array (size=15) 'value' => array (size=0) empty 'isset' => boolean true 'null' => boolean false 'empty' => boolean true 'bool' => boolean false 'array' => boolean true 'string' => boolean false 'int' => boolean false 'float' => boolean false 'numeric' => boolean false 'scalar' => boolean false 'object' => boolean false 'resource' => boolean false 'true' => boolean false 'false' => boolean true 4 => array (size=15) 'value' => int 0 'isset' => boolean true 'null' => boolean false 'empty' => boolean true 'bool' => boolean false 'array' => boolean false 'string' => boolean false 'int' => boolean true 'float' => boolean false 'numeric' => boolean true 'scalar' => boolean true 'object' => boolean false 'resource' => boolean false 'true' => boolean false 'false' => boolean true 5 => array (size=15) 'value' => int 1 'isset' => boolean true 'null' => boolean false 'empty' => boolean false 'bool' => boolean false 'array' => boolean false 'string' => boolean false 'int' => boolean true 'float' => boolean false 'numeric' => boolean true 'scalar' => boolean true 'object' => boolean false 'resource' => boolean false 'true' => boolean true 'false' => boolean false 6 => array (size=15) 'value' => float 0.1 'isset' => boolean true 'null' => boolean false 'empty' => boolean false 'bool' => boolean false 'array' => boolean false 'string' => boolean false 'int' => boolean false 'float' => boolean true 'numeric' => boolean true 'scalar' => boolean true 'object' => boolean false 'resource' => boolean false 'true' => boolean true 'false' => boolean false 7 => array (size=15) 'value' => float 1.123 'isset' => boolean true 'null' => boolean false 'empty' => boolean false 'bool' => boolean false 'array' => boolean false 'string' => boolean false 'int' => boolean false 'float' => boolean true 'numeric' => boolean true 'scalar' => boolean true 'object' => boolean false 'resource' => boolean false 'true' => boolean true 'false' => boolean false 8 => array (size=15) 'value' => string '' (length=0) 'isset' => boolean true 'null' => boolean false 'empty' => boolean true 'bool' => boolean false 'array' => boolean false 'string' => boolean true 'int' => boolean false 'float' => boolean false 'numeric' => boolean false 'scalar' => boolean true 'object' => boolean false 'resource' => boolean false 'true' => boolean false 'false' => boolean true 9 => array (size=15) 'value' => string '0' (length=1) 'isset' => boolean true 'null' => boolean false 'empty' => boolean true 'bool' => boolean false 'array' => boolean false 'string' => boolean true 'int' => boolean false 'float' => boolean false 'numeric' => boolean true 'scalar' => boolean true 'object' => boolean false 'resource' => boolean false 'true' => boolean false 'false' => boolean true 10 => array (size=15) 'value' => string '1' (length=1) 'isset' => boolean true 'null' => boolean false 'empty' => boolean false 'bool' => boolean false 'array' => boolean false 'string' => boolean true 'int' => boolean false 'float' => boolean false 'numeric' => boolean true 'scalar' => boolean true 'object' => boolean false 'resource' => boolean false 'true' => boolean true 'false' => boolean false 11 => array (size=15) 'value' => string '10' (length=2) 'isset' => boolean true 'null' => boolean false 'empty' => boolean false 'bool' => boolean false 'array' => boolean false 'string' => boolean true 'int' => boolean false 'float' => boolean false 'numeric' => boolean true 'scalar' => boolean true 'object' => boolean false 'resource' => boolean false 'true' => boolean true 'false' => boolean false 12 => array (size=15) 'value' => string '0.10' (length=4) 'isset' => boolean true 'null' => boolean false 'empty' => boolean false 'bool' => boolean false 'array' => boolean false 'string' => boolean true 'int' => boolean false 'float' => boolean false 'numeric' => boolean true 'scalar' => boolean true 'object' => boolean false 'resource' => boolean false 'true' => boolean true 'false' => boolean false 13 => array (size=15) 'value' => string '1.123' (length=5) 'isset' => boolean true 'null' => boolean false 'empty' => boolean false 'bool' => boolean false 'array' => boolean false 'string' => boolean true 'int' => boolean false 'float' => boolean false 'numeric' => boolean true 'scalar' => boolean true 'object' => boolean false 'resource' => boolean false 'true' => boolean true 'false' => boolean false 14 => array (size=15) 'value' => string '1,234,567' (length=9) 'isset' => boolean true 'null' => boolean false 'empty' => boolean false 'bool' => boolean false 'array' => boolean false 'string' => boolean true 'int' => boolean false 'float' => boolean false 'numeric' => boolean false 'scalar' => boolean true 'object' => boolean false 'resource' => boolean false 'true' => boolean true 'false' => boolean false 15 => array (size=15) 'value' => string ' 1' (length=2) 'isset' => boolean true 'null' => boolean false 'empty' => boolean false 'bool' => boolean false 'array' => boolean false 'string' => boolean true 'int' => boolean false 'float' => boolean false 'numeric' => boolean true 'scalar' => boolean true 'object' => boolean false 'resource' => boolean false 'true' => boolean true 'false' => boolean false 16 => array (size=15) 'value' => string '1 ' (length=2) 'isset' => boolean true 'null' => boolean false 'empty' => boolean false 'bool' => boolean false 'array' => boolean false 'string' => boolean true 'int' => boolean false 'float' => boolean false 'numeric' => boolean false 'scalar' => boolean true 'object' => boolean false 'resource' => boolean false 'true' => boolean true 'false' => boolean false 17 => array (size=15) 'value' => string ' 1 ' (length=3) 'isset' => boolean true 'null' => boolean false 'empty' => boolean false 'bool' => boolean false 'array' => boolean false 'string' => boolean true 'int' => boolean false 'float' => boolean false 'numeric' => boolean false 'scalar' => boolean true 'object' => boolean false 'resource' => boolean false 'true' => boolean true 'false' => boolean false 18 => array (size=15) 'value' => string 'Hello' (length=5) 'isset' => boolean true 'null' => boolean false 'empty' => boolean false 'bool' => boolean false 'array' => boolean false 'string' => boolean true 'int' => boolean false 'float' => boolean false 'numeric' => boolean false 'scalar' => boolean true 'object' => boolean false 'resource' => boolean false 'true' => boolean true 'false' => boolean false 19 => array (size=15) 'value' => object(stdClass)[7] 'isset' => boolean true 'null' => boolean false 'empty' => boolean false 'bool' => boolean false 'array' => boolean false 'string' => boolean false 'int' => boolean false 'float' => boolean false 'numeric' => boolean false 'scalar' => boolean false 'object' => boolean true 'resource' => boolean false 'true' => boolean true 'false' => boolean false 20 => array (size=15) 'value' => resource(10, Unknown) 'isset' => boolean true 'null' => boolean false 'empty' => boolean false 'bool' => boolean false 'array' => boolean false 'string' => boolean false 'int' => boolean false 'float' => boolean false 'numeric' => boolean false 'scalar' => boolean false 'object' => boolean false 'resource' => boolean true 'true' => boolean true 'false' => boolean false
@ Mac PHP 5.3.27