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-rwxr-xr-xext/standard/basic_functions.stub.php2
-rwxr-xr-xext/standard/basic_functions_arginfo.h2
-rw-r--r--ext/standard/var.c4
3 files changed, 4 insertions, 4 deletions
diff --git a/ext/standard/basic_functions.stub.php b/ext/standard/basic_functions.stub.php
index 88ff210d72..75eeaffedf 100755
--- a/ext/standard/basic_functions.stub.php
+++ b/ext/standard/basic_functions.stub.php
@@ -1295,7 +1295,7 @@ function var_export($value, bool $return = false): ?string {}
function debug_zval_dump($value, ...$value): void {}
/** @param mixed $value */
-function serialize($value): ?string {}
+function serialize($value): string {}
/** @return mixed */
function unserialize(string $value, array $options = []) {}
diff --git a/ext/standard/basic_functions_arginfo.h b/ext/standard/basic_functions_arginfo.h
index 74f3ee3998..0ffd3e7ee6 100755
--- a/ext/standard/basic_functions_arginfo.h
+++ b/ext/standard/basic_functions_arginfo.h
@@ -1940,7 +1940,7 @@ ZEND_END_ARG_INFO()
#define arginfo_debug_zval_dump arginfo_var_dump
-ZEND_BEGIN_ARG_WITH_RETURN_TYPE_INFO_EX(arginfo_serialize, 0, 1, IS_STRING, 1)
+ZEND_BEGIN_ARG_WITH_RETURN_TYPE_INFO_EX(arginfo_serialize, 0, 1, IS_STRING, 0)
ZEND_ARG_INFO(0, value)
ZEND_END_ARG_INFO()
diff --git a/ext/standard/var.c b/ext/standard/var.c
index bbaf6cde22..cd5ceda889 100644
--- a/ext/standard/var.c
+++ b/ext/standard/var.c
@@ -1138,7 +1138,7 @@ PHPAPI void php_var_serialize_destroy(php_serialize_data_t d) {
}
}
-/* {{{ proto string|null serialize(mixed variable)
+/* {{{ proto string serialize(mixed variable)
Returns a string representation of variable (which can later be unserialized) */
PHP_FUNCTION(serialize)
{
@@ -1162,7 +1162,7 @@ PHP_FUNCTION(serialize)
if (buf.s) {
RETURN_NEW_STR(buf.s);
} else {
- RETURN_NULL();
+ RETURN_EMPTY_STRING();
}
}
/* }}} */