How to get the substring with the most occurrences in a Chinese string_PHP Tutorial

Enter the code directly, and the length of the substring can be set by yourself (for example, 4 consecutive characters or 5 characters).

Copy code The code is as follows:

$str ='I am Chinese I am foreigner I am Korean I am American, I am Chinese, I am British, I am Chinese, I am foreigner';
Count_string($str,5);
function Count_string($sstr,$length)
{
$cnt_tmp = 0;
$cnt = 0;
$str = '';
$str_tmp = array();
$str_arr = array();
mb_internal_encoding("gb2312" );
$max_length = (mb_strlen($sstr)-$length);

//Get the substring set
for($i=0;$i<=$max_length;$i++ )
{
$str_tmp[] = mb_substr($sstr, $i, $length);
}
//Remove duplicate substrings
$str_tmp = array_unique($str_tmp);

//Calculate the number of occurrences
foreach($str_tmp as $key=>$value)
{
$cnt_tmp = mb_substr_count($sstr,$value);
if ($cnt_tmp>=$cnt)
{
$cnt = $cnt_tmp;
$str_arr[$value] = $cnt;
}
}

// Handling multiple results
foreach($str_arr as $key=>$value)
{
if($value == $cnt)
{$str .=$key."< br>";}
}

echo 'The most frequently occurring substring is:
'.$str.'
Number of occurrences:'.$cnt;
}

http://www.bkjia.com/PHPjc/328134.htmlwww.bkjia.comtruehttp: //www.bkjia.com/PHPjc/328134.htmlTechArticleAdd the code directly, and the length of the substring can be set by yourself (such as 4 consecutive characters or 5 characters) . Copy the code. The code is as follows: $str ='I am Chinese, I am a foreigner, I am Korean, I am American...