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--TEST--
Test array_key_exists() function : usage variations - floats and casting to ints
--FILE--
<?php
/* Prototype : bool array_key_exists(mixed $key, array $search)
* Description: Checks if the given key or index exists in the array
* Source code: ext/standard/array.c
* Alias to functions: key_exists
*/
/*
* Pass floats as $key argument, then cast float values
* to integers and pass as $key argument
*/
echo "*** Testing array_key_exists() : usage variations ***\n";
$keys = array(1.2345678900E-10, 1.00000000000001, 1.99999999999999);
$search = array ('zero', 'one', 'two');
$iterator = 1;
foreach($keys as $key) {
echo "\n-- Iteration $iterator --\n";
echo "Pass float as \$key:\n";
var_dump(array_key_exists($key, $search));
echo "Cast float to int:\n";
var_dump(array_key_exists((int)$key, $search));
}
echo "Done";
?>
--EXPECTF--
*** Testing array_key_exists() : usage variations ***
-- Iteration 1 --
Pass float as $key:
Warning: array_key_exists(): The first argument should be either a string or an integer in %s on line %d
bool(false)
Cast float to int:
bool(true)
-- Iteration 1 --
Pass float as $key:
Warning: array_key_exists(): The first argument should be either a string or an integer in %s on line %d
bool(false)
Cast float to int:
bool(true)
-- Iteration 1 --
Pass float as $key:
Warning: array_key_exists(): The first argument should be either a string or an integer in %s on line %d
bool(false)
Cast float to int:
bool(true)
Done