这些函数的行为受 php.ini 中的设置影响。
| 名字 | 默认 | 可修改范围 | 更新日志 |
|---|---|---|---|
| iconv.input_encoding | "ISO-8859-1" | PHP_INI_ALL | 自 PHP 4.0.5 起有效。 |
| iconv.output_encoding | "ISO-8859-1" | PHP_INI_ALL | 自 PHP 4.0.5 起有效。 |
| iconv.internal_encoding | "ISO-8859-1" | PHP_INI_ALL | 自 PHP 4.0.5 起有效。 |
这是配置指令的简短说明。
有些系统（比如 IBM AIX） 使用 "ISO8859-1" 来代替 "ISO-8859-1"，所以在配置选项和函数参数中必须使用这个值。
Justin (2009-03-17 09:56:04)
Many people report problems compiling PHP on Leopard due to a libiconv issue.
This may be due to the small C test programme in ./configure.
It calls open_conv with two const * char arguments (correct), but these are NOT valid charsets to iconv. This then breaks ./configure.
AFAIK from the libiconv documentation, the PHP configure call is incorrect: this function expects two valid charset arguments. (You can see a list of valid arguments by running iconv -l).
Changing the call to:
cd = open_conv("UTF-8","ISO-8859-1")
returns a valid iconv_t number (non-negative), and configure can then continue setting up for your Makefile compile.