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String interception function (supports mixed Chinese and English)_PHP tutorial
- WBOYOriginal
- 2016-07-20 11:01:39854browse
String interception function (supports mixed Chinese and English) In the past, we would use the function that comes with PHP to intercept strings. Today I will take a look at a PHP code example of a string interception function (supports mixed Chinese and English).
String interception function (supports mixed Chinese and English)
In the past, we used the function that comes with the PHP tutorial to intercept strings. Today I will take a look at a PHP code example of a string interception function (supporting a mix of Chinese and English).
*/
function cutstr($string, $sublen=10, $start = 0, $code = 'utf-8')
{
if($code == 'utf-8')
{
$pa = "/[x01-x7f]|[xc2-xdf][x80-xbf]|xe0[xa0-xbf][x80-xbf]|[xe1-xef][x80-xbf][x80-xbf]| xf0[x90-xbf][x80-xbf][x80-xbf]|[xf1-xf7][x80-xbf][x80-xbf][x80-xbf]/";
preg_match_all($pa, $string, $t_string);//if(count($t_string[0]) - $start > $sublen) return join('', array_slice($t_string[0], $start, $sublen))."..." ;
return join('', array_slice($t_string[0], $start, $sublen));
}
else
{
$start = $start*2;
$sublen = $sublen*2;
$strlen = strlen($string);
$tmps tutorial tr = '';
for($i=0; $i<$strlen; $i++)
{
if($i>=$start && $i<($start+$sublen))
{
if(ord(substr($string, $i, 1))>129) $tmpstr.= substr($string, $i, 2);
else $tmpstr.= substr($string, $i, 1);
}
if(ord(substr($string, $i, 1))>129) $i++;
}
//if(strlen($tmpstr)<$strlen ) $tmpstr.= "...";
return $tmpstr;
}
}