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--TEST--
Test array_walk() function : usage variations - 'input' argument as diff. associative arrays
--FILE--
<?php
/* Prototype : bool array_walk(array $input, string $funcname [, mixed $userdata])
* Description: Apply a user function to every member of an array
* Source code: ext/standard/array.c
*/
/*
* Passing 'input' argument as an associative array
* with Numeric & string keys
*/
echo "*** Testing array_walk() : 'input' as an associative array ***\n";
// callback functions
/* Prototype : for_numeric( int $value, int $key, int $user_data)
* Parameters : $value - value from key/value pair of the array
* $key - key from key/value pair of the array
* $user_data - data to be added to 'value'
* Description : Function adds values with keys & user_data
*/
function for_numeric($value, $key, $user_data)
{
// dump the input values to see if they are
// passed with correct type
var_dump($key);
var_dump($value);
var_dump($user_data);
echo "\n"; // new line to separate the output between each element
}
/* Prototype : for_string( string $value, string $key)
* Parameters : $value - values in given input array
* $key - keys in given input array
* Description : Function appends key to the value
*/
function for_string($value, $key)
{
// dump the input values to see if they are
// passed with correct type
var_dump($key);
var_dump($value);
echo "\n"; // new line to separate the output between each element
}
/* Prototype : for_mixed( mixed $value, mixed $key)
* Parameters : $value - values in given input array
* $key - keys in given input array
* Description : Function displays each element of an array with keys
*/
function for_mixed($value, $key)
{
// dump the input values to see if they are
// passed with correct type
var_dump($key);
var_dump($value);
echo "\n"; // new line to separate the output between each element
}
// Numeric keys
$input = array( 1 => 25, 5 => 12, 0 => -80, -2 => 100, 5 => 30);
echo "-- Associative array with numeric keys --\n";
var_dump( array_walk($input, "for_numeric", 10));
// String keys
$input = array( "a" => "Apple", 'b' => 'Bananna', "c" => "carrot", 'o' => "Orange");
echo "-- Associative array with string keys --\n";
var_dump( array_walk($input, "for_string"));
// binary keys
$input = array( b"a" => "Apple", b"b" => "Banana");
echo "-- Associative array with binary keys --\n";
var_dump( array_walk($input, "for_string"));
// Mixed keys - numeric/string
$input = array( 0 => 1, 1 => 2, "a" => "Apple", "b" => "Banana", 2 =>3);
echo "-- Associative array with numeric/string keys --\n";
var_dump( array_walk($input, "for_mixed"));
echo "Done"
?>
--EXPECT--
*** Testing array_walk() : 'input' as an associative array ***
-- Associative array with numeric keys --
int(1)
int(25)
int(10)
int(5)
int(30)
int(10)
int(0)
int(-80)
int(10)
int(-2)
int(100)
int(10)
bool(true)
-- Associative array with string keys --
string(1) "a"
string(5) "Apple"
string(1) "b"
string(7) "Bananna"
string(1) "c"
string(6) "carrot"
string(1) "o"
string(6) "Orange"
bool(true)
-- Associative array with binary keys --
string(1) "a"
string(5) "Apple"
string(1) "b"
string(6) "Banana"
bool(true)
-- Associative array with numeric/string keys --
int(0)
int(1)
int(1)
int(2)
string(1) "a"
string(5) "Apple"
string(1) "b"
string(6) "Banana"
int(2)
int(3)
bool(true)
Done
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