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-rw-r--r--ext/standard/string.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/ext/standard/string.c b/ext/standard/string.c
index b070a5e827..e4361a1114 100644
--- a/ext/standard/string.c
+++ b/ext/standard/string.c
@@ -3156,7 +3156,7 @@ static zend_string* php_char_to_str_ex(zend_string *str, char from, char *to, si
{
zend_string *result;
size_t char_count = 0;
- char lc_from = 0;
+ int lc_from = 0;
const char *source, *source_end= ZSTR_VAL(str) + ZSTR_LEN(str);
char *target;