Detailed explanation of function examples in php that support Chinese string splitting

This article shares with you two PHP methods for using the mb_xxx method to achieve Chinese character segmentation. The basic ideas are similar. Friends in need can refer to it.

str_split does not support Chinese, use mb_xx function to implement

/**
 * Convert a string to an array
 * @param string $str
 * @param number $split_length
 * @return multitype:string
 */
function mb_str_split($str,$split_length=1,$charset="UTF-8"){
  if(func_num_args()==1){
    return preg_split(&#39;/(?<!^)(?!$)/u&#39;, $str);
  }
  if($split_length<1)return false;
  $len = mb_strlen($str, $charset);
  $arr = array();
  for($i=0;$i<$len;$i+=$split_length){
    $s = mb_substr($str, $i, $split_length, $charset);
    $arr[] = $s;
  }
  return $arr;
}

Method 2:

function mbStrSplit ($string, $len=1) {
  $start = 0;
  $strlen = mb_strlen($string);
  while ($strlen) {
    $array[] = mb_substr($string,$start,$len,"utf8");
    $string = mb_substr($string, $len, $strlen,"utf8");
    $strlen = mb_strlen($string);
  }
  return $array;
}

The above is the detailed content of Detailed explanation of function examples in php that support Chinese string splitting. For more information, please follow other related articles on the PHP Chinese website!