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PHP关于代码转换问题比较完善的解决办法

Jun 21, 2016 am 09:01 AM
nbsp replace str string

最近在写bbs中,遇上代码转换问题。寻找了很久,才得到一个比较完善的解决办法,可以彻底还原发文者的原文。

以下贴出,供大家指正。

系统:linux+php4+oracle8i


//--标题,名字等字段入库处理(去首尾空格)
function trans_string_trim($str) {
  $str=trim($str);
  $str=eregi_replace("'","''",$str);
  $str=stripslashes($str);
  return $str;
}
//--文章入库处理,即textarea字段;
function trans_string($str) {
  $str=eregi_replace("'","''",$str);
  $str=stripslashes($str);
  return $str;
}
//--从库中显示在表单中;在text中以trans转换,在textarea中,无需转换,直接显示
//--显示在WEB页面,过滤HTML代码;包括链接地址
function trans($string) {
  $string=htmlspecialchars($string);
  $string=ereg_replace(chr(10),"
",$string);
  $string=ereg_replace(chr(32)," ",$string);
  return $string;  
}
//--显示在WEB页面,不过滤HTML代码;
function trans_web($string) {
  $string=ereg_replace(chr(10),"
",$string);
  $string=ereg_replace(chr(32)," ",$string);
  return $string;  
}
//--显示在WEB页面,过滤HTML代码及头尾空格,主要用于显示用户昵称
function trans_trim($string) {
  $string=trim($string);
  $string=htmlspecialchars($string);
  $string=ereg_replace(chr(10),"
",$string);
  $string=ereg_replace(chr(32)," ",$string);
  return $string;  
}
//--显示在span中;
function trans_span($string) {
  $string=ereg_replace(chr(10),"\n",$string);
  $string=ereg_replace(chr(32)," ",$string);
  $string=ereg_replace('"',""",$string);
  return $string;  
}
//--在WEB上显示cookie,过滤html
function trans_cookie($str) {
  $str=trans($str);
  $str=stripslashes($str);
  $str=eregi_replace("''","'",$str);
  return $str;
}
?>

最后,顺带补充一点,如果在span中显示文章中的一段,采用substr取定长字符串时,记得在span的参数后面多加一个空格,否则遇上截到半个汉字时,会搞乱html代码。



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