MysqlndUhConnection::getErrorString

(PECL mysqlnd-uh >= 1.0.0-alpha)

MysqlndUhConnection::getErrorString — Returns a string description of the last error

说明

public MysqlndUhConnection::getErrorString ( mysqlnd_connection $connection ) : string

Returns a string description of the last error.

参数

connection

Mysqlnd connection handle. Do not modify!

返回值

Error string for the most recent function call.

范例

MysqlndUhConnection::getErrorString() is not only executed after the invocation of a user space API call which maps directly to it but also called internally.

Example #1 MysqlndUhConnection::getErrorString() example

<?php
class proxy extends MysqlndUhConnection {
 public function getErrorString($res) {
   printf("%s(%s)\n", __METHOD__, var_export(func_get_args(), true));
   $ret = parent::getErrorString($res);
   printf("%s returns %s\n", __METHOD__, var_export($ret, true));
   return $ret;
 }
}
mysqlnd_uh_set_connection_proxy(new proxy());

printf("connect...\n");
$mysqli = new mysqli("localhost", "root", "", "test");
printf("query...\n");
$mysqli->query("WILL_I_EVER_LEARN_SQL?");
printf("errno...\n");
var_dump($mysqli->error);
printf("close...\n");
$mysqli->close();
?>

以上例程会输出：

connect...
proxy::getErrorString(array (
  0 => NULL,
))
proxy::getErrorString returns ''
query...
errno...
proxy::getErrorString(array (
  0 => NULL,
))
proxy::getErrorString returns '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 \'WILL_I_EVER_LEARN_SQL?\' at line 1'
string(168) "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 'WILL_I_EVER_LEARN_SQL?' at line 1"
close...

参见

相关文章
php eventbufferevent returns string describing the last failed dns lookup attemptphp ibm db2 函数 returns a string containing the last sql statement error messagephp db++ 函数 get error string for given errorcode or last errorphp eio 函数 returns string describing the last error associated with a request resourcephp enchant 函数 returns the last error of the brokerphp intl 函数 get description of the last errorphp json 函数 returns the error string of the last json encode or json decode callphp maxdb 函数 returns a string description of the last connect errorphp maxdb 函数 returns a string description of the last errorphp maxdb 函数 returns a string description for last statement errorphp session pgsql 函数 returns number of errors and last error messagephp sqlsrv 函数 returns error and warning information about the last sqlsrv operation performedphp stomp 函数 returns a string description of the last connect errorphp yaz 函数 returns error descriptionphp gearmanclient returns an error string for the last error encounteredphp mysqli stmt returns a string description for last statement errorphp mysqli returns a string description of the last connect errorphp mysqli returns a string description of the last errorphp mysqlnduhconnection returns a string description of the last errorphp mysqlnduhconnection returns the sqlstate error from previous mysql operation
关注编程学问公众号