iconv_set_encoding()

(PHP 4 >= 4.0.5, PHP 5, PHP 7)

为字符编码转换设定当前设置

说明

iconv_set_encoding(string $type,string $charset): bool

将$type设置的值从内部配置变量更改为$charset。

参数

$type

$type的值可以是以下其中任意一个：

• input_encoding
• output_encoding
• internal_encoding

$charset

字符集。

返回值

成功时返回TRUE，或者在失败时返回FALSE。

范例

iconv_set_encoding()例子

<?php
iconv_set_encoding("internal_encoding", "UTF-8");
iconv_set_encoding("output_encoding", "ISO-8859-1");
?>

参见

• iconv_get_encoding()获取 iconv 扩展的内部配置变量
• ob_iconv_handler()以输出缓冲处理程序转换字符编码

I encountered the same issue than joe dot bowman at edigitalresearch.com
Even if i read on the web that it is a usual issue when using PHP 5.6 and upper, i didn't encounter it on every sites on which i use PHP 5.6.
Nevertheless, i had to find a solution because, when the issue appears, it's embarrassing. This is what i found thanks to Alexandra López on http://hasibul.info.
Instead of :
if (function_exists(‘iconv’))
{
// These are settings that can be set inside code
  iconv_set_encoding(“internal_encoding”, “UTF-8?);
  iconv_set_encoding(“input_encoding”, “UTF-8?);
  iconv_set_encoding(“output_encoding”, “UTF-8?);
}
i use :
if (PHP_VERSION_ID < 50600) {
  iconv_set_encoding('input_encoding', 'UTF-8');
  iconv_set_encoding('output_encoding', 'UTF-8');
  iconv_set_encoding('internal_encoding', 'UTF-8');
} else {
  ini_set('default_charset', 'UTF-8');
}

As of PHP 5.6, this throws a Deprecated level error, as is consistent with setting the iconv.*_encoding ini settings:
iconv_set_encoding('internal_encoding', 'UTF-8');
triggers:
PHP Deprecated: iconv_set_encoding(): Use of iconv.internal_encoding is deprecated in ...

On PHP 5.2.5 when iconv.*_encoding values are set using php_admin_value in the Apache configuration file, this call will fail and return false.