mb_substitute_character
(PHP 4 >= 4.0.6, PHP 5)
mb_substitute_character — Set/Get substitution character
说明
mixed mb_substitute_character ([ mixed $substrchar ] )Specifies a substitution character when input character encoding is invalid or character code does not exist in output character encoding. Invalid characters may be substituted NULL (no output), string or integer value (Unicode character code value).
This setting affects mb_convert_encoding(), mb_convert_variables(), mb_output_handler(), and mb_send_mail().
参数
返回值
If substchar is set, it returns TRUE for success, otherwise returns FALSE. If substchar is not set, it returns the Unicode value, or "none" or "long".
范例
Example #1 mb_substitute_character() example
<?php
mb_substitute_character(0x3013);
mb_substitute_character("long");
echo mb_substitute_character();
?>
