Warning: fread(): Length parameter must be greater than 0 in /alidata/site/system/library/cache/file.php on line 32

Warning: fread(): Length parameter must be greater than 0 in /alidata/site/system/library/cache/file.php on line 32
Notice: Undefined index: customer_id in /alidata/site/catalog/model/geren/graduate.php on line 50
Fatal error: Uncaught exception 'Exception' with message 'Error: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'AND renzheng_bys=1' at line 1<br />Error No: 1064<br />SELECT name,xuehao,email,school_id_student FROM oc_customer WHERE customer_id= AND renzheng_bys=1' in /alidata/site/system/library/db/mysqli.php:40 Stack trace: #0 /alidata/site/system/library/db.php(16): DB\MySQLi->query('SELECT name,xue...', Array) #1 /alidata/site/catalog/model/geren/graduate.php(50): DB->query('SELECT name,xue...') #2 [internal function]: ModelGerenGraduate->fontss() #3 /alidata/site/system/engine/loader.php(150): call_user_func_array(Array, Array) #4 [internal function]: Loader->{closure}(Array) #5 /alidata/site/system/engine/proxy.php(13): call_user_func(Object(Closure), Array) #6 /alidata/site/catalog/controller/geren/jianli.php(358): Proxy->__call('fontss', Array) #7 /alidata/site/catalog/controller/geren/jianli.php(358): Proxy->fontss() #8 [inter in /alidata/site/system/library/db/mysqli.php on line 40