(PHP 4 >= 4.2.0, PHP 5, PHP 7, PHP 8)
mb_eregi — Regular expression match ignoring case with multibyte support
$pattern, string $string, array &$matches = null): boolExecutes the case insensitive regular expression match with multibyte support.
patternThe regular expression pattern.
stringThe string being searched.
matches
       If matches are found for parenthesized substrings of
       pattern and the function is called with the
       third argument matches, the matches will be stored
       in the elements of the array matches.
       If no matches are found, matches is set to an empty
       array.
      
$matches[1] will contain the substring which starts at the first left parenthesis; $matches[2] will contain the substring starting at the second, and so on. $matches[0] will contain a copy of the complete string matched.
   Returns whether pattern matches string.
  
| 版本 | 说明 | 
|---|---|
| 8.0.0 | This function returns trueon success now. Previously, it returned the byte length
       of the matched string if a match forpatternwas found instringandmatcheswas passed.
       If the optional parametermatcheswas not passed or
       the length of the matched string was0, this function returned1. | 
| 7.1.0 | mb_eregi() will now set matchesto
       an empty array, if nothing matched. Formerly,matcheswas not modified in that case. | 
注意:
mb_regex_encoding() 指定的内部编码或字符编码将会当作此函数用的字符编码。