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|
--TEST--
Test is_array() function
--FILE--
<?php
/* Prototype: bool is_array ( mixed $var );
* Description: Finds whether the given variable is an array
*/
echo "*** Testing is_array() on different type of arrays ***\n";
/* different types of arrays */
$arrays = array(
array(),
array(NULL),
array(null),
array(true),
array(""),
array(''),
array(array(), array()),
array(array(1, 2), array('a', 'b')),
array(1 => 'One'),
array("test" => "is_array"),
array(0),
array(-1),
array(10.5, 5.6),
array("string", "test"),
array('string', 'test')
);
/* loop to check that is_array() recognizes different
type of arrays, expected output bool(true) */
$loop_counter = 1;
foreach ($arrays as $var_array ) {
echo "-- Iteration $loop_counter --\n"; $loop_counter++;
var_dump( is_array ($var_array) );
}
echo "\n*** Testing is_array() on non array types ***\n";
// get a resource type variable
$fp = fopen (__FILE__, "r");
$dfp = opendir ( dirname(__FILE__) );
// unset variables
$unset_array = array(10);
unset($unset_array);
// other types in a array
$varient_arrays = array (
/* integers */
543915,
-5322,
0x55F,
-0xCCF,
123,
-0654,
/* strings */
"",
'',
"0",
'0',
'string',
"string",
/* floats */
10.0000000000000000005,
.5e6,
-.5E7,
.5E+8,
-.5e+90,
1e5,
/* objects */
new stdclass,
/* resources */
$fp,
$dfp,
/* nulls */
null,
NULL,
/* boolean */
true,
TRUE,
FALSE,
false,
/* unset/undefined arrays */
@$unset_array,
@$undefined_array
);
/* loop through the $varient_array to see working of
is_array() on non array types, expected output bool(false) */
$loop_counter = 1;
foreach ($varient_arrays as $type ) {
echo "-- Iteration $loop_counter --\n"; $loop_counter++;
var_dump( is_array ($type) );
}
echo "\n*** Testing error conditions ***\n";
//Zero argument
var_dump( is_array() );
//arguments more than expected
var_dump( is_array ($fp, $fp) );
echo "Done\n";
/* close resources */
fclose($fp);
closedir($dfp);
?>
--EXPECTF--
*** Testing is_array() on different type of arrays ***
-- Iteration 1 --
bool(true)
-- Iteration 2 --
bool(true)
-- Iteration 3 --
bool(true)
-- Iteration 4 --
bool(true)
-- Iteration 5 --
bool(true)
-- Iteration 6 --
bool(true)
-- Iteration 7 --
bool(true)
-- Iteration 8 --
bool(true)
-- Iteration 9 --
bool(true)
-- Iteration 10 --
bool(true)
-- Iteration 11 --
bool(true)
-- Iteration 12 --
bool(true)
-- Iteration 13 --
bool(true)
-- Iteration 14 --
bool(true)
-- Iteration 15 --
bool(true)
*** Testing is_array() on non array types ***
-- Iteration 1 --
bool(false)
-- Iteration 2 --
bool(false)
-- Iteration 3 --
bool(false)
-- Iteration 4 --
bool(false)
-- Iteration 5 --
bool(false)
-- Iteration 6 --
bool(false)
-- Iteration 7 --
bool(false)
-- Iteration 8 --
bool(false)
-- Iteration 9 --
bool(false)
-- Iteration 10 --
bool(false)
-- Iteration 11 --
bool(false)
-- Iteration 12 --
bool(false)
-- Iteration 13 --
bool(false)
-- Iteration 14 --
bool(false)
-- Iteration 15 --
bool(false)
-- Iteration 16 --
bool(false)
-- Iteration 17 --
bool(false)
-- Iteration 18 --
bool(false)
-- Iteration 19 --
bool(false)
-- Iteration 20 --
bool(false)
-- Iteration 21 --
bool(false)
-- Iteration 22 --
bool(false)
-- Iteration 23 --
bool(false)
-- Iteration 24 --
bool(false)
-- Iteration 25 --
bool(false)
-- Iteration 26 --
bool(false)
-- Iteration 27 --
bool(false)
-- Iteration 28 --
bool(false)
-- Iteration 29 --
bool(false)
*** Testing error conditions ***
Warning: is_array() expects exactly 1 parameter, 0 given in %s on line %d
bool(false)
Warning: is_array() expects exactly 1 parameter, 2 given in %s on line %d
bool(false)
Done
|
