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php在字符串中查找另一个字符串

WBOY
WBOYOriginal
2016-06-13 12:26:261460browse

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中查找

>第二个字符串可以在第一个字符串的任何位置

>第一个字符串以第二个字符串开始

>第一个字符串以第二个字符串结束

>区分大小写




if(isset($string) and isset($query) and $string"" and $query""){
  if(isset($case)){
    $func = "ereg";
  }
  else{
    $func = "eregi";
  }
  switch($where){
    case "^":
      $query = "^" . $query;
      break;
    case "$":
      $query .= "$";
      break;
  }
  eval("$found = $func("$query","$string");");
  if($found){
    echo "找到!";
  }
  else{
    echo "未找到!";
  }
}
?>
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