mysqli::character_set_name()
(PHP 5, PHP 7)
返回当前数据库连接的默认字符编码
说明
面向对象风格
mysqli::character_set_name(void): string
过程化风格
mysqli_character_set_name(mysqli$link): string
返回当前数据库连接的默认字符编码。
参数
- $link
仅以过程化样式:由mysqli_connect()或mysqli_init()返回的链接标识。
返回值
The default character set for the current connection
范例
Example #1 mysqli::character_set_name() example
面向对象风格
<?php /* Open a connection */ $mysqli = new mysqli("localhost", "my_user", "my_password", "world"); /* check connection */ if (mysqli_connect_errno()) { printf("Connect failed: %s\n", mysqli_connect_error()); exit(); } /* Print current character set */ $charset = $mysqli->character_set_name(); printf ("Current character set is %s\n", $charset); $mysqli->close(); ?>
过程化风格
<?php /* Open a connection */ $link = mysqli_connect("localhost", "my_user", "my_password", "world"); /* check connection */ if (!$link) { printf("Connect failed: %s\n", mysqli_connect_error()); exit(); } /* Print current character set */ $charset = mysqli_character_set_name($link); printf ("Current character set is %s\n",$charset); /* close connection */ mysqli_close($link); ?>
以上例程会输出:
Current character set is latin1_swedish_ci
参见
- mysqli_set_charset() 设置默认字符编码
mysqli_client_encoding()
mysqli_character_set_name 的别名- mysqli_real_escape_string() 根据当前连接的字符集,对于 SQL 语句中的特殊字符进行转义