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Fix GH-8924 str_split of empty string must return empty array #8945

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Fix GH-8924 str_split of empty string must return empty array #8945

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6 changes: 5 additions & 1 deletion ext/standard/string.c
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Original file line number Diff line number Diff line change
Expand Up @@ -5882,7 +5882,11 @@ PHP_FUNCTION(str_split)
RETURN_THROWS();
}

if (0 == ZSTR_LEN(str) || (size_t)split_length >= ZSTR_LEN(str)) {
if ((size_t)split_length >= ZSTR_LEN(str)) {
if (0 == ZSTR_LEN(str)) {
RETURN_EMPTY_ARRAY();
}

array_init_size(return_value, 1);
add_next_index_stringl(return_value, ZSTR_VAL(str), ZSTR_LEN(str));
return;
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14 changes: 12 additions & 2 deletions ext/standard/tests/strings/str_split_basic.phpt
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Expand Up @@ -16,7 +16,11 @@ var_dump( str_split($str,$split_length) );
echo "-- With split_length as default argument --\n";
var_dump( str_split($str) );

echo "Done"
echo "-- Empty string must always return empty array --\n";
var_dump( str_split('') );
var_dump( str_split('', 1) );
var_dump( str_split('', 100) );

?>
--EXPECT--
*** Testing str_split() : basic functionality ***
Expand Down Expand Up @@ -80,4 +84,10 @@ array(22) {
[21]=>
string(1) "e"
}
Done
-- Empty string must always return empty array --
array(0) {
}
array(0) {
}
array(0) {
}
4 changes: 1 addition & 3 deletions ext/standard/tests/strings/str_split_variation3.phpt
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Expand Up @@ -39,9 +39,7 @@ echo "Done"
--EXPECTF--
*** Testing str_split() : double quoted strings for 'str' ***
-- Iteration 1 --
array(1) {
[0]=>
string(0) ""
array(0) {
}
-- Iteration 2 --
array(1) {
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4 changes: 1 addition & 3 deletions ext/standard/tests/strings/str_split_variation4.phpt
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Expand Up @@ -38,9 +38,7 @@ echo "Done"
--EXPECT--
*** Testing str_split() : single quoted strings for 'str' ***
-- Iteration 1 --
array(1) {
[0]=>
string(0) ""
array(0) {
}
-- Iteration 2 --
array(1) {
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8 changes: 2 additions & 6 deletions ext/standard/tests/strings/str_split_variation5.phpt
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Expand Up @@ -81,14 +81,10 @@ echo "Done"
--EXPECT--
*** Testing str_split() : heredoc strings as 'str' argument ***
-- Iteration 1 --
array(1) {
[0]=>
string(0) ""
array(0) {
}
-- Iteration 2 --
array(1) {
[0]=>
string(0) ""
array(0) {
}
-- Iteration 3 --
array(1) {
Expand Down