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|
--TEST--
Test array_filter() function : usage variations - Different types of array for 'input' argument
--FILE--
<?php
/*
* Passing different types of array as 'input' argument.
*/
function always_false($input)
{
return false;
}
// callback function returning always true
function always_true($input)
{
return true;
}
echo "*** Testing array_filter() : usage variations - different types of array for 'input' argument***\n";
// different types of 'input' array
$input_values = array(
array(0, 1, 2, -1, 034, 0X4A), // integer values
array(0.0, 1.2, 1.2e3, 1.2e-3), // float values
array('value1', "value2", '', " ", ""), // string values
array(true, false, TRUE, FALSE), // bool values
array(null, NULL), // null values
array(1 => 'one', 'zero' => 0, -2 => "value"), //associative array
array("one" => 1, null => 'null', 5.2 => "float", true => 1, "" => 'empty'), // associative array with different keys
array(1 => 'one', 2, "key" => 'value') // combinition of associative and non-associative array
);
// loop through each element of 'input' with default callback
for($count = 0; $count < count($input_values); $count++)
{
echo "-- Iteration ".($count + 1). " --\n";
var_dump( array_filter($input_values[$count]) );
var_dump( array_filter($input_values[$count], 'always_true') );
var_dump( array_filter($input_values[$count], 'always_false') );
}
echo "Done"
?>
--EXPECT--
*** Testing array_filter() : usage variations - different types of array for 'input' argument***
-- Iteration 1 --
array(5) {
[1]=>
int(1)
[2]=>
int(2)
[3]=>
int(-1)
[4]=>
int(28)
[5]=>
int(74)
}
array(6) {
[0]=>
int(0)
[1]=>
int(1)
[2]=>
int(2)
[3]=>
int(-1)
[4]=>
int(28)
[5]=>
int(74)
}
array(0) {
}
-- Iteration 2 --
array(3) {
[1]=>
float(1.2)
[2]=>
float(1200)
[3]=>
float(0.0012)
}
array(4) {
[0]=>
float(0)
[1]=>
float(1.2)
[2]=>
float(1200)
[3]=>
float(0.0012)
}
array(0) {
}
-- Iteration 3 --
array(3) {
[0]=>
string(6) "value1"
[1]=>
string(6) "value2"
[3]=>
string(1) " "
}
array(5) {
[0]=>
string(6) "value1"
[1]=>
string(6) "value2"
[2]=>
string(0) ""
[3]=>
string(1) " "
[4]=>
string(0) ""
}
array(0) {
}
-- Iteration 4 --
array(2) {
[0]=>
bool(true)
[2]=>
bool(true)
}
array(4) {
[0]=>
bool(true)
[1]=>
bool(false)
[2]=>
bool(true)
[3]=>
bool(false)
}
array(0) {
}
-- Iteration 5 --
array(0) {
}
array(2) {
[0]=>
NULL
[1]=>
NULL
}
array(0) {
}
-- Iteration 6 --
array(2) {
[1]=>
string(3) "one"
[-2]=>
string(5) "value"
}
array(3) {
[1]=>
string(3) "one"
["zero"]=>
int(0)
[-2]=>
string(5) "value"
}
array(0) {
}
-- Iteration 7 --
array(4) {
["one"]=>
int(1)
[""]=>
string(5) "empty"
[5]=>
string(5) "float"
[1]=>
int(1)
}
array(4) {
["one"]=>
int(1)
[""]=>
string(5) "empty"
[5]=>
string(5) "float"
[1]=>
int(1)
}
array(0) {
}
-- Iteration 8 --
array(3) {
[1]=>
string(3) "one"
[2]=>
int(2)
["key"]=>
string(5) "value"
}
array(3) {
[1]=>
string(3) "one"
[2]=>
int(2)
["key"]=>
string(5) "value"
}
array(0) {
}
Done
|
