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|
--TEST--
Test intval() function : usage variation
--FILE--
<?php
/* Prototype : int intval(mixed var [, int base])
* Description: Get the integer value of a variable using the optional base for the conversion
* Source code: ext/standard/type.c
* Alias to functions:
*/
echo "*** Testing intval() : usage variation ***\n";
// Define error handler
function test_error_handler($err_no, $err_msg, $filename, $linenum, $vars) {
if (error_reporting() != 0) {
// report non-silenced errors
echo "Error: $err_no - $err_msg, $filename($linenum)\n";
}
}
set_error_handler('test_error_handler');
// Initialise function arguments not being substituted (if any)
$base = 10;
//get an unset variable
$unset_var = 10;
unset ($unset_var);
// define some classes
class classWithToString
{
public function __toString() {
return "Class A object";
}
}
class classWithoutToString
{
}
// heredoc string
$heredoc = <<<EOT
hello world
EOT;
// add arrays
$index_array = array (1, 2, 3);
$assoc_array = array ('one' => 1, 'two' => 2);
//array of values to iterate over
$inputs = array(
// int data
'int 0' => 0,
'int 1' => 1,
'int 12345' => 12345,
'int -12345' => -2345,
// float data
'float 10.5' => 10.5,
'float -10.5' => -10.5,
'float 12.3456789e5' => 12.3456789e5,
'float -12.3456789e5' => -12.3456789e5,
'float .5' => .5,
// array data
'empty array' => array(),
'int indexed array' => $index_array,
'associative array' => $assoc_array,
'nested arrays' => array('foo', $index_array, $assoc_array),
// null data
'uppercase NULL' => NULL,
'lowercase null' => null,
// boolean data
'lowercase true' => true,
'lowercase false' =>false,
'uppercase TRUE' =>TRUE,
'uppercase FALSE' =>FALSE,
// empty data
'empty string DQ' => "",
'empty string SQ' => '',
// string data
'string DQ' => "string",
'string SQ' => 'string',
'mixed case string' => "sTrInG",
'heredoc' => $heredoc,
// object data
'instance of classWithToString' => new classWithToString(),
'instance of classWithoutToString' => new classWithoutToString(),
// undefined data
'undefined var' => @$undefined_var,
// unset data
'unset var' => @$unset_var,
);
// loop through each element of the array for var
foreach($inputs as $key =>$value) {
echo "\n--$key--\n";
var_dump( intval($value, $base) );
};
?>
===DONE===
--EXPECTF--
*** Testing intval() : usage variation ***
--int 0--
int(0)
--int 1--
int(1)
--int 12345--
int(12345)
--int -12345--
int(-2345)
--float 10.5--
int(10)
--float -10.5--
int(-10)
--float 12.3456789e5--
int(1234567)
--float -12.3456789e5--
int(-1234567)
--float .5--
int(0)
--empty array--
int(0)
--int indexed array--
int(1)
--associative array--
int(1)
--nested arrays--
int(1)
--uppercase NULL--
int(0)
--lowercase null--
int(0)
--lowercase true--
int(1)
--lowercase false--
int(0)
--uppercase TRUE--
int(1)
--uppercase FALSE--
int(0)
--empty string DQ--
int(0)
--empty string SQ--
int(0)
--string DQ--
int(0)
--string SQ--
int(0)
--mixed case string--
int(0)
--heredoc--
int(0)
--instance of classWithToString--
Error: 8 - Object of class classWithToString could not be converted to int, %s(%d)
int(1)
--instance of classWithoutToString--
Error: 8 - Object of class classWithoutToString could not be converted to int, %s(%d)
int(1)
--undefined var--
int(0)
--unset var--
int(0)
===DONE===
|
