PHP iconv (): Unknown error (84)

Today, suddenly received a product manager phone, said the text message sent error, send SMS interface has been running for three months is very normal, take it for granted that there is a problem in the provider side, to find the provider, engaged in a long period of the final discovery or own code has a problem.

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There is no way to dig their own hole to fill ah, check the code to see where there are problems, tracking code hints, is confused ah, check the official documents it,

Iconv
(PHP 4 >= 4.0.5, PHP 5, PHP 7)
iconv-strings are converted as required character encodings
Description
String Iconv (String $in _charset, String $out _charset, String $str)
Encodes the string str from In_charset to Out_charset.

Parameters
In_charset: Enter the character set.
Out_charset: The character set of the output.
If you add a string//translit after Out_charset, the transliteration (transliteration) feature is enabled. This means that when a character cannot be represented by the target character set, it can be approximated by one or more similar characters. If you add a string//ignore, characters that cannot be expressed in the target character set are silently discarded. Otherwise, Str starts truncating from the first invalid character and causes a e_notice.
STR: the string to convert.
Return value: Returns the converted string, or returns FALSE on failure.

In addition to Baidu

Http://www.tonitech.com/822.html

Http://www.aikaiyuan.com/8418.html

You can determine the direction of the problem.

A character cannot be represented by the target character when the Iconv () function is transcoded

The Iconv () function is required for the second parameter of //translit,//ignore two values.

Previous code:

Iconv ("Utf-8", "GBK", $this->content)

After modifying the code:

Iconv ("Utf-8", "Gbk//translit//ignore", $this->content)

Re-submit SMS content

Your SMS reminder content, which was added at 2015-11-07 15:44, was sent to completion in 2015-11-07 15:45 \ '; Successfully sent 2 people, sending failed 0 people.

OK problem solving

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PHP iconv (): Unknown error (84)