diff --git a/extend/service/CarInfoHandle.php b/extend/service/CarInfoHandle.php
index 79861b1..0a206c8 100644
--- a/extend/service/CarInfoHandle.php
+++ b/extend/service/CarInfoHandle.php
@@ -326,7 +326,7 @@ class CarInfoHandle
                                     list($source_a, $source) = [$source, $source_a];
                                 } else if (trim($source_a['insurer2_date']) != trim($source['insurer2_date']) && (trim($source_a['insurer2_date']) == '' || $source_a['insurer2_date'] < $source['insurer2_date'])) {
                                     list($source_a, $source) = [$source, $source_a];
-                                } else if ($source_a['car_no'] != $source['car_no'] && (trim($source_a['car_no']) == '' || !in_array(strlen($source_a['car_no']), [7,8]))) {
+                                } else if ($source_a['car_no'] != $source['car_no'] && (trim($source_a['car_no']) == '' || !in_array(mb_strlen($source_a['car_no']), [7,8]))) {
                                     list($source_a, $source) = [$source, $source_a];
                                 } else if ($source_a['register_date'] != $source['register_date'] && (trim($source_a['register_date']) == '' || $source_a['register_date'] < $source['register_date'])) {
                                     list($source_a, $source) = [$source, $source_a];
@@ -349,7 +349,7 @@ class CarInfoHandle
                                 $this->repeatDataHandle($source, $id, 'frame');
                                 $delete_num ++;
                                 unset($sources[$index]);
-                            } else if ($source_a['car_no'] != $source['car_no'] && (trim($source_a['car_no']) == '' || !in_array(strlen($source_a['car_no']), [7,8]))) {
+                            } else if ($source_a['car_no'] != $source['car_no'] && (trim($source_a['car_no']) == '' || !in_array(mb_strlen($source_a['car_no']), [7,8]))) {
                                 list($source_a, $source) = [$source, $source_a];
                                 $this->repeatDataHandle($source, $id, 'frame');
                                 $delete_num ++;
@@ -372,7 +372,7 @@ class CarInfoHandle
                                 list($source_a, $source) = [$source, $source_a];
                             } else if (trim($source_a['insurer2_date']) != trim($source['insurer2_date']) && (trim($source_a['insurer2_date']) == '' || $source_a['insurer2_date'] < $source['insurer2_date'])) {
                                 list($source_a, $source) = [$source, $source_a];
-                            } else if ($source_a['car_no'] != $source['car_no'] && (trim($source_a['car_no']) == '' || !in_array(strlen($source_a['car_no']), [7,8]))) {
+                            } else if ($source_a['car_no'] != $source['car_no'] && (trim($source_a['car_no']) == '' || !in_array(mb_strlen($source_a['car_no']), [7,8]))) {
                                 list($source_a, $source) = [$source, $source_a];
                             } else if ($source_a['register_date'] != $source['register_date'] && (trim($source_a['register_date']) == '' || $source_a['register_date'] < $source['register_date'])) {
                                 list($source_a, $source) = [$source, $source_a];
@@ -386,7 +386,7 @@ class CarInfoHandle
                                 list($source_a, $source) = [$source, $source_a];
                             } else if (trim($source_a['insurer2_date']) != trim($source['insurer2_date']) && (trim($source_a['insurer2_date']) == '' || $source_a['insurer2_date'] < $source['insurer2_date'])) {
                                 list($source_a, $source) = [$source, $source_a];
-                            } else if ($source_a['car_no'] != $source['car_no'] && (trim($source_a['car_no']) == '' || !in_array(strlen($source_a['car_no']), [7,8]))) {
+                            } else if ($source_a['car_no'] != $source['car_no'] && (trim($source_a['car_no']) == '' || !in_array(mb_strlen($source_a['car_no']), [7,8]))) {
                                 list($source_a, $source) = [$source, $source_a];
                             } else if ($source_a['register_date'] != $source['register_date'] && (trim($source_a['register_date']) == '' || $source_a['register_date'] < $source['register_date'])) {
                                 list($source_a, $source) = [$source, $source_a];