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Promote warnings to errors in array_flip() #4582

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3 changes: 2 additions & 1 deletion ext/standard/array.c
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Original file line number Diff line number Diff line change
Expand Up @@ -4444,7 +4444,8 @@ PHP_FUNCTION(array_flip)
}
zend_symtable_update(Z_ARRVAL_P(return_value), Z_STR_P(entry), &data);
} else {
php_error_docref(NULL, E_WARNING, "Can only flip STRING and INTEGER values!");
zend_type_error("Can only flip STRING and INTEGER values!");
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We should also drop the ALLCAPS and the exclamation mark ... this is a very aggressive warning ;)

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@nikic I actually noticed that too and there are more exclamation marks which can be removed. I think a separate PR is better

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Should I do the same for array_count_values and group both of them in a single PR ?

return;
}
} ZEND_HASH_FOREACH_END();
}
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47 changes: 30 additions & 17 deletions ext/standard/tests/array/array_flip.phpt
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Expand Up @@ -12,26 +12,39 @@ $trans = array("a" => 1,
0 => "G",
1 => "h",
2 => "i");
$trans = array_flip($trans);

try {
$trans = array_flip($trans);
} catch (\TypeError $e) {
echo $e->getMessage() . "\n";
}
var_dump($trans);
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this var_dump can be removed - as well as the EXPECT output. When an exception occurs the array is not modified - this is known behavior and doesn't need testing as part of this change

?>
--EXPECTF--
Warning: array_flip(): Can only flip STRING and INTEGER values! in %s on line %d

Warning: array_flip(): Can only flip STRING and INTEGER values! in %s on line %d

Warning: array_flip(): Can only flip STRING and INTEGER values! in %s on line %d
array(6) {
[1]=>
string(1) "b"
[2]=>
string(1) "c"
[0]=>
string(1) "z"
["G"]=>
int(0)
["h"]=>
DONE
--EXPECT--
Can only flip STRING and INTEGER values!
array(10) {
["a"]=>
int(1)
["i"]=>
["b"]=>
int(1)
["c"]=>
int(2)
["z"]=>
int(0)
["d"]=>
bool(true)
["E"]=>
bool(false)
["F"]=>
NULL
[0]=>
string(1) "G"
[1]=>
string(1) "h"
[2]=>
string(1) "i"
}

DONE
39 changes: 10 additions & 29 deletions ext/standard/tests/array/array_flip_variation4.phpt
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Expand Up @@ -52,39 +52,20 @@ $input = array(
'resource_value' => $fp,
);

var_dump( array_flip($input) );
try {
var_dump( array_flip($input) );
} catch (\TypeError $e) {
echo $e->getMessage() . "\n";
}

// closing resource
fclose($fp);

echo "Done"
?>
--EXPECTF--
*** Testing array_flip() : different invalid values in 'input' array argument ***

Warning: array_flip(): Can only flip STRING and INTEGER values! in %s on line %d

Warning: array_flip(): Can only flip STRING and INTEGER values! in %s on line %d

Warning: array_flip(): Can only flip STRING and INTEGER values! in %s on line %d

Warning: array_flip(): Can only flip STRING and INTEGER values! in %s on line %d

Warning: array_flip(): Can only flip STRING and INTEGER values! in %s on line %d

Warning: array_flip(): Can only flip STRING and INTEGER values! in %s on line %d

Warning: array_flip(): Can only flip STRING and INTEGER values! in %s on line %d

Warning: array_flip(): Can only flip STRING and INTEGER values! in %s on line %d

Warning: array_flip(): Can only flip STRING and INTEGER values! in %s on line %d

Warning: array_flip(): Can only flip STRING and INTEGER values! in %s on line %d

Warning: array_flip(): Can only flip STRING and INTEGER values! in %s on line %d
DONE
--EXPECT--
*** Testing array_flip() : different invalid values in 'input' array argument ***
Can only flip STRING and INTEGER values!

Warning: array_flip(): Can only flip STRING and INTEGER values! in %s on line %d
array(0) {
}
Done
DONE