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php实现页面跳转的几种方法

Jun 13, 2016 am 10:52 AM
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PHP被许多程序员用来开发WEB的首选语言。在实际开发中,网站的各项功能都可以通过PHP语言的编写来满足,比如PHP页面跳转这一方法。

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Web系统中,从一个网页跳转到另一个网页,是LAMP项目中最常用的技术之一。页面跳转可能是由于用户单击链接、按钮等引发的,也可能是系统自动产生的。 此处介绍PHP中常用的实现页面自动跳转的方法。

PHP页面跳转一、header()函数

header()函数是PHP中进行页面跳转的一种十分简单的方法。header()函数的主要功能是将HTTP协议标头(header)输出到浏览器。

header()函数的定义如下:

void header (string string [,bool replace [,int http_response_code]])

可选参数replace指明是替换前一条类似标头还是添加一条相同类型的标头,默认为替换。

第二个可选参数http_response_code强制将HTTP相应代码设为指定值。 header函数中Location类型的标头是一种特殊的header调用,常用来实现页面跳转。注意:1.location和“:”号间不能有空格,否则不会跳转。

2.在用header前不能有任何的输出。

3.header后的PHP代码还会被执行。例如,将浏览器重定向到lamp兄弟连官方论坛

[php] 
 
//重定向浏览器 
 
header("Location: http://bbs. lampbrother.net"); 
 
//确保重定向后,后续代码不会被执行 
 
exit;
 
?>
[php] 
 
//重定向浏览器  
 
header("Location: http://bbs. lampbrother.net");  
 
//确保重定向后,后续代码不会被执行  
 
exit; 
 
?> 

PHP页面跳转二、Meta标签

Meta标签是HTML中负责提供文档元信息的标签,在PHP程序中使用该标签,也可以实现页面跳转。 若定义http-equiv为refresh,则打开该页面时将根据content规定的值在一定时间内跳转到相应页面。

若设置content="秒数;url=网址",则定义了经过多长时间后页面跳转到指定的网址。例如,使用meta标签实现疫苗后页面自动跳转到LAMP兄弟连官方论坛。

[html] 
 
content = "1;url=http:// bbs.lampbrother.net" >
[html] view plaincopy
 
content = "1;url=http:// bbs.lampbrother.net" > 

例如,以下程序meta.php实现在该页面中停留一秒后页面自动跳转到bbs.lampbrother.net。

[html]  
 
$ url  =  "http://bbs.lampbrother.net" ;  ?>  
 
    
 
    
 
 
url = " >    
 
    
 
    
 
页面只停留一秒……   
 
  
 

[html] 
 
$ url  =  "http://bbs.lampbrother.net" ;  ?>   
 
     
 
     
 
 
url = " >     
 
     
 
     
 
页面只停留一秒……    
 
   
 
 

PHP页面跳转三、JavaScript

例如,此代码可以放在程序中的任何合法位置。

[javascript] 
 
$ url  =  "http://bbs.lampbrother.net" ;  
 
echo "  
type = 'text/javascript' > ";  
 
echo " window.location.href = '$url' ";  
 
echo " ";  
 
?>
[javascript] view plaincopy
 
$ url  =  "http://bbs.lampbrother.net" ;   
 
echo "  
type = 'text/javascript' > ";   
 
echo " window.location.href = '$url' ";   
 
echo " ";   
 
?> 

以上就是我们向大家介绍的三种PHP页面跳转实现方法。

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