如何用PHP更改背景图像？ [英] How can I change background image with PHP?

问题描述

大家好，



我想问你如何上传图片然后将其路径传递给CSS文件。我创建了一个style.php文件，它正在工作

 <？php  
 
 
 header（ '  Content-type：text / css'）; 
 
  $ bg  = array（'  http://placehold.it/320x320'，'  http://placehold.it/ 350x350'，'  http://placehold.it/300x300'）; 
 
  $ i  = rand（0，count（$ bg）-1）; 
  $ selectedBg  =   $ bg [$ I]; 
 
 
 ？>  

 正文 {
 背景 ：  url（<？php echo $ selectedBg; ？>）; 
} 

但我不知道如何从另一个页面向数组中添加另一个元素。例如，我想有一个上传按钮，以便我可以稍后更改背景。

解决方案

bg = array（' http://placehold.it/320x320'，' http://placehold.it/350x350'，' http： //placehold.it/300x300' ）;

i = rand（0，count（

< BLOCKQUOTE> BG）-1）;

Hello guys,

I would like to ask you how I can upload an image and then pass its path to the CSS file. I created a style.php file and it's working

<?php 


header('Content-type: text/css');

$bg = array('http://placehold.it/320x320', 'http://placehold.it/350x350', 'http://placehold.it/300x300'); 

  $i = rand(0, count($bg)-1);
  $selectedBg = "$bg[$i]"; 


 ?>

body{
 	background: url(<?php echo $selectedBg; ?>);
 }

But I do not know how to add another element to the array from another page. For example I would like to have an upload button so I can change the background later.

解决方案

bg = array('http://placehold.it/320x320', 'http://placehold.it/350x350', 'http://placehold.it/300x300');

i = rand(0, count(

bg)-1);

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