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PHP5中文手册
mysqli_errnomysqli->errno(PHP 5) mysqli->errno — Returns the error code for the most recent function call 说明Procedural style:
int mysqli_errno
( mysqli $link
)
Object oriented style (property): mysqli
int$errno;
Returns the last error code for the most recent MySQLi function call that can succeed or fail. Client error message numbers are listed in the MySQL errmsg.h header file, server error message numbers are listed in mysqld_error.h. In the MySQL source distribution you can find a complete list of error messages and error numbers in the file Docs/mysqld_error.txt. 返回值An error code value for the last call, if it failed. zero means no error occurred. 范例Example#1 Object oriented style
<?php Example#2 Procedural style
<?php 上例将输出:
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