Idn 関数
PHP Manual

idn_strerror

(PECL idn >= 0.2)

idn_strerrorReturns string describing the IDNA error code

説明

string idn_strerror ( integer $errorcode )

This function returns the error message string that corresponds to the given error code.

パラメータ

errorcode

The error code as returned by idn_to_ascii() or idn_to_utf8().

返り値

The corresponding libidn error message string is returned.

参考


Idn 関数
PHP Manual