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利用PHP删除特殊符号

Jun 06, 2016 pm 08:09 PM
php Who are you delete use special symbols programming

在编程的时候,不管你是偏向PHP等较为简单的编程,还是说想Java等更需要逻辑的强类型语言编程,都会或多或少地接触到对特殊符号的处理。特殊符号虽然显得不怎么起眼,但却极有可能会让程序实现不了初衷的目的运行效果。我们最常见到的无非就是Bom了。Bom是字

在编程的时候,不管你是偏向PHP等较为简单的编程,还是说想Java等更需要逻辑的强类型语言编程,都会或多或少地接触到对特殊符号的处理。特殊符号虽然显得不怎么起眼,但却极有可能会让程序实现不了初衷的目的运行效果。我们最常见到的无非就是Bom了。Bom是字节顺序标记,它是插入到以UTF-8、UTF16或UTF-32编码Unicode文件开头的特殊标记,用来识别Unicode文件的编码类型。很多编辑器在保存文件的时候都会默认写入或者保存这一些我们看不到的bom,而前后时候不同的编码格式写程序,也很容易出现bom的问题。下面,我们来看看,PHP下面,怎么去删除bom等特殊符号。

<?php ??
function?delete_special_mark($str){ ??
//去除字符串?首尾?空白等特殊符号或指定字符序列 ??
$str?=?trim($str);? ??
//去掉?HTML、XML?以及?PHP?的标签 ??
$str?=?strip_tags($str,"");? ??
//去掉TAB切换产生的符号 ??
$str?=?ereg_replace("\t","",$str);? ??
//去掉换行?通常是两个enter造成 ??
$str?=?ereg_replace("\r\n","",$str);? ??
//去掉enter换行 ??
$str?=?ereg_replace("\r","",$str); ??
//去掉换行? ??
$str?=?ereg_replace("\n","",$str);? ??
//去掉空白 ??
$str?=?ereg_replace("?","?",$str);? ??
//处理从数据库或?HTML?表单中取回数据包含的特殊符号 ??
$str?=?stripslashes($str); ??
//删除bom标记 ??
$str=?preg_replace(?'/^(\xef\xbb\xbf)/',?'',?$str); ??
return?$str; ??
} ??
?>??
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如果你对处理特殊符号有更好的方法,欢迎与我交流!!

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