php-src/ext/standard/tests/array/array_key_exists_variation6.phpt
Peter Kokot d679f02295 Sync leading and final newlines in *.phpt sections
This patch adds missing newlines, trims multiple redundant final
newlines into a single one, and trims redundant leading newlines in all
*.phpt sections.

According to POSIX, a line is a sequence of zero or more non-' <newline>'
characters plus a terminating '<newline>' character. [1] Files should
normally have at least one final newline character.

C89 [2] and later standards [3] mention a final newline:
"A source file that is not empty shall end in a new-line character,
which shall not be immediately preceded by a backslash character."

Although it is not mandatory for all files to have a final newline
fixed, a more consistent and homogeneous approach brings less of commit
differences issues and a better development experience in certain text
editors and IDEs.

[1] http://pubs.opengroup.org/onlinepubs/9699919799/basedefs/V1_chap03.html#tag_03_206
[2] https://port70.net/~nsz/c/c89/c89-draft.html#2.1.1.2
[3] https://port70.net/~nsz/c/c99/n1256.html#5.1.1.2
2018-10-15 04:33:09 +02:00

95 lines
2.5 KiB
PHP

--TEST--
Test array_key_exists() function : usage variations - equality test for certain data types
--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 certain data types that can be taken as a key in an array
* and test whether array_key_exists(() thinks they are equal and therefore
* returns true when searching for them
*/
echo "*** Testing array_key_exists() : usage variations ***\n";
$unset = 10;
unset($unset);
$array = array ('null' => null,
'NULL' => NULL,
'empty single quoted string' => '',
"empty double quoted string" => "",
'undefined variable' => @$undefined,
'unset variable' => @$unset);
//iterate through original array
foreach($array as $name => $input) {
$iterator = 1;
echo "\n-- Key in \$search array is : $name --\n";
$search[$input] = 'test';
//iterate through array again to see which values are considered equal
foreach($array as $key) {
echo "Iteration $iterator: ";
var_dump(array_key_exists($key, $search));
$iterator++;
}
$search = null;
}
echo "Done";
?>
--EXPECT--
*** Testing array_key_exists() : usage variations ***
-- Key in $search array is : null --
Iteration 1: bool(true)
Iteration 2: bool(true)
Iteration 3: bool(true)
Iteration 4: bool(true)
Iteration 5: bool(true)
Iteration 6: bool(true)
-- Key in $search array is : NULL --
Iteration 1: bool(true)
Iteration 2: bool(true)
Iteration 3: bool(true)
Iteration 4: bool(true)
Iteration 5: bool(true)
Iteration 6: bool(true)
-- Key in $search array is : empty single quoted string --
Iteration 1: bool(true)
Iteration 2: bool(true)
Iteration 3: bool(true)
Iteration 4: bool(true)
Iteration 5: bool(true)
Iteration 6: bool(true)
-- Key in $search array is : empty double quoted string --
Iteration 1: bool(true)
Iteration 2: bool(true)
Iteration 3: bool(true)
Iteration 4: bool(true)
Iteration 5: bool(true)
Iteration 6: bool(true)
-- Key in $search array is : undefined variable --
Iteration 1: bool(true)
Iteration 2: bool(true)
Iteration 3: bool(true)
Iteration 4: bool(true)
Iteration 5: bool(true)
Iteration 6: bool(true)
-- Key in $search array is : unset variable --
Iteration 1: bool(true)
Iteration 2: bool(true)
Iteration 3: bool(true)
Iteration 4: bool(true)
Iteration 5: bool(true)
Iteration 6: bool(true)
Done