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Check parameters on compact() and throw TypeError if not string or array of strings #6921

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Merged
merged 8 commits into from
May 11, 2021
Merged

Check parameters on compact() and throw TypeError if not string or array of strings #6921

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e4672fd
Check parameters on compact() and throw TypeError
dwgebler Apr 28, 2021
f35c7e0
remove old test cases which no longer yield empty output
dwgebler Apr 28, 2021
da2118c
remove integer val from array test
dwgebler Apr 28, 2021
aada56e
address gpb's review comments
dwgebler Apr 28, 2021
97b22e4
change typeerror message and corresponding tests
dwgebler Apr 28, 2021
1f62ace
revert to warning on invalid parameter
dwgebler May 8, 2021
3655199
restore undefined variable test
dwgebler May 8, 2021
2361002
add var dump to test
dwgebler May 10, 2021
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9 changes: 6 additions & 3 deletions ext/standard/array.c
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Original file line number Diff line number Diff line change
Expand Up @@ -2447,7 +2447,7 @@ PHP_FUNCTION(extract)
}
/* }}} */

static void php_compact_var(HashTable *eg_active_symbol_table, zval *return_value, zval *entry) /* {{{ */
static void php_compact_var(HashTable *eg_active_symbol_table, zval *return_value, zval *entry, uint32_t pos) /* {{{ */
{
zval *value_ptr, data;

Expand Down Expand Up @@ -2475,11 +2475,14 @@ static void php_compact_var(HashTable *eg_active_symbol_table, zval *return_valu
Z_PROTECT_RECURSION_P(entry);
}
ZEND_HASH_FOREACH_VAL(Z_ARRVAL_P(entry), value_ptr) {
php_compact_var(eg_active_symbol_table, return_value, value_ptr);
php_compact_var(eg_active_symbol_table, return_value, value_ptr, pos);
} ZEND_HASH_FOREACH_END();
if (Z_REFCOUNTED_P(entry)) {
Z_UNPROTECT_RECURSION_P(entry);
}
} else {
php_error_docref(NULL, E_WARNING, "Argument #%d must be string or array of strings, %s given", pos, zend_zval_type_name(entry));
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This error message is a bit imprecise when it comes to values in arrays, but I think it's good enough to go on...

return;
}
}
/* }}} */
Expand Down Expand Up @@ -2512,7 +2515,7 @@ PHP_FUNCTION(compact)
}

for (i = 0; i < num_args; i++) {
php_compact_var(symbol_table, return_value, &args[i]);
php_compact_var(symbol_table, return_value, &args[i], i + 1);
}
}
/* }}} */
Expand Down
10 changes: 10 additions & 0 deletions ext/standard/tests/array/compact.phpt
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Expand Up @@ -11,6 +11,12 @@ $location_vars = array("c\\u0327ity", "state");

$result = compact("event", $location_vars);
var_dump($result);

$result = compact(true);
$foo = 'bar';
$bar = 'baz';
$result = compact($foo, [42]);

?>
--EXPECTF--
Warning: compact(): Undefined variable $c\u0327ity in %s on line %d
Expand All @@ -20,3 +26,7 @@ array(2) {
["state"]=>
string(2) "CA"
}

Warning: compact(): Argument #1 must be string or array of strings, bool given in %s on line %d

Warning: compact(): Argument #2 must be string or array of strings, int given in %s on line %d
15 changes: 1 addition & 14 deletions ext/standard/tests/array/compact_basic.phpt
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Expand Up @@ -19,12 +19,7 @@ $f="string";
var_dump (compact(array("a", "b", "c", "d", "e", "f")));
// simple parameter test
var_dump (compact("a", "b", "c", "d", "e", "f"));
var_dump (compact(array("keyval"=>"a", "b"=>"b", "c"=>1)));

// cases which should not yield any output.
var_dump (compact(array(10, 0.3, true, array(20), NULL)));
var_dump (compact(10, 0.3, true, array(20), NULL));
var_dump (compact(array("g")));
var_dump (compact(array("keyval"=>"a", "b"=>"b")));

echo "Done";
?>
Expand Down Expand Up @@ -70,12 +65,4 @@ array(2) {
["b"]=>
float(0.2)
}
array(0) {
}
array(0) {
}

Warning: compact(): Undefined variable $g in %s on line %d
array(0) {
}
Done