What are the php interception string functions that support Chinese and other encodings
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A simple string interception method that supports Chinese and other encodings. Just pass in the corresponding parameters and call them directly.
The copy code is as follows:
/ * *
* string interception, which supports Chinese and other encodings
* @ static
* @ access public
* @ param string $str string to be converted
* @ param string $start start position
* @ param string $length intercept length
* @ param string $charset encoding format
* @ param string $suffix truncate display characters
* @ return string
, /
Function msubstr ($str, $start=0, $length, $charset= "utf-8", $suffix=true) {
If (function_exists ("mb_substr"))
$slice = mb_substr ($str, $start, $length, $charset)
Elseif (function_exists ('iconv_substr')) {
$slice = iconv_substr ($str,$start,$length,$charset)
If (false = = $slice) {
$slice =''
}
} else {
$re ['utf-8'] = "/ [\ x01 -\ x7f] | [\ xc2-\ xdf] [\ x80 -\ xbf] | [\ xe0-\ xef] [\ x80 -\ xbf] {2} | [\ xf0-\ xff] [\ x80 -\ xbf] {3} /"
$re ['gb2312'] = "/ [\ x01 -\ x7f] | [\ xb0-\ xf7] [\ xa0-\ xfe] /"
$re ['gbk'] = "/ [\ x01 -\ x7f] | [\ x81 -\ xfe] [\ x40 -\ xfe] /"
$re ['big5'] = "/ [\ x01 -\ x7f] | [\ x81 -\ xfe] ([\ x40 -\ x7e] |\ xa1-\ xfe]) /"
Preg_match_all ($re [$charset], $str, $match)
$slice = join ("", array_slice ($match [0], $start, $length))
}
Return $suffix? $slice.'...': $slice
}
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