将CSS 3图像过滤器添加到php
[英]add css 3 image filters to php
问题描述
I made a webpage where I upload (to a database) and display at same time in latest uploaded manner like any social networking. 
我制作了一个网页，可以上传（到数据库）并以最新上传的方式同时显示，就像任何社交网络一样。
I added a button "Add Filter", which on clicking opens a new page where I need to display the image associated with that corresponding button and radio buttons with different filter values. 我添加了一个按钮“添加过滤器”，单击该按钮将打开一个新页面，在该页面中需要显示与该按钮和具有不同过滤器值的单选按钮关联的图像。 I am able to display the image and buttons properly but on clicking the filter buttons the effect does not apply. 我能够正确显示图像和按钮，但是单击滤镜按钮后，效果不适用。
First I tested the buttons on basic HTML and all worked perfectly. 首先，我测试了基本HTML上的按钮，所有按钮均正常运行。 But when I tried in php, effect was not getting applied. 但是当我在php中尝试时，效果没有得到应用。 I know the reason for this, that is, I am not able to write proper syntax for div id #myImg, which in HTML we write as 我知道原因，就是说我无法为div id #myImg编写正确的语法，在HTML中，我们将其写为
<img id="myImg" src="cool1.jpg" />
But in php I am able to give id (I mean the position, etc, property is properly applied) but effects are not getting applied 但是在php中我可以给出id（我的意思是位置等，属性已正确应用），但效果未得到应用
Here's my code 这是我的代码
<html>
<head><title>Play </title>
<head>
<meta name="viewport" content="width=device-width">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1" />
<title>Img Filtr</title>
<link rel="stylesheet" type="text/css" href="/trystyle.css" />
<script type="text/javascript">
function click_position(obj)
{
change_position(obj.value)
}
function change_position(val)
{
var s="demoDIV";
s="myImg ";
s=s.trim();
document.getElementById(s).style.filter=val;
document.getElementById(s).style.WebkitFilter=val;
var x="filter:<span id='enlargecssprop'>" + val + "</span>";
var y="img#myImg {<br> ###CSSPROP###;<br>}<br>";
var z=y.replace("###CSSPROP###",x);
}
</script>
<style>
.playit {
background-color:#ffffff;
margin-top:1%;
margin-left:55%;
float:left;
font-family:Consolas,'Courier New', Courier, monospace;
}
img#myImg {
filter:none;
width:50%;
height:70%;
line-height:200%;
margin-bottom:15%;
position: absolute;
margin: 15px;
left:0;
}
</style></head>
<body>
<?php
$servername = "localhost";
$username = "root";
$password = "";
$dbname = "databaseimage";
// Create connection
$conn = new mysqli($servername, $username, $password, $dbname);
// Check connection
if ($conn->connect_error) {
die("Connection failed: " . $conn->connect_error);
}
if(isset($_POST["filter"]))
{
$image = $_POST['imageID'];
$sql = mysqli_query($conn,"SELECT url FROM images where image_id='$image'");
$image = mysqli_fetch_assoc($sql);
$image1= '<img src="data:image/jpeg;base64,'.base64_encode( $image['url'] ).'" width="500" height="500" >';
echo $image1;//how to add the myimg id to give effects
echo " <form class='playit' action='javascript:return false;'>
Filter:<br><br>
<input type='hidden' id='preselectedValue' value='none' />
<div class='radio'><input autocomplete='off' type='radio' name='radio_position' onclick=click_position(this) id='value_1' value='none'/><label for='value_1'>none</label></div>
<div class='radio'><input autocomplete='off' type='radio' name='radio_position' onclick=click_position(this) id='value_2' value='none'/><label for='value_2'>blur(5px)</label></div>
<div class='radio'><input autocomplete='off' type='radio' name='radio_position' onclick=click_position(this) id='value_3' value='none'/><label for='value_3'>contrast(200%)</label></div>
<div class='radio'><input autocomplete='off' type='radio' name='radio_position' onclick=click_position(this) id='value_4' value='none'/><label for='value_1'><label for='value_4'>drop-shadow(8px 8px 10px red)</label></div>
<div class='radio'><input autocomplete='off' type='radio' name='radio_position' onclick=click_position(this) id='value_5' value='none'/><label for='value_5'>grayscale(100%)</label></div>
<div class='radio'><input autocomplete='off' type='radio' name='radio_position' onclick=click_position(this) id='value_6' value='none'/><label for='value_1'><label for='value_6'>hue-rotate(90deg)</label></div>
<div class='radio'><input autocomplete='off' type='radio' name='radio_position' onclick=click_position(this) id='value_7' value='none'/><label for='value_1'><label for='value_7'>invert(100%)</label></div>
<div class='radio'><input autocomplete='off' type='radio' name='radio_position' onclick=click_position(this) id='value_8' value='none'/><label for='value_1'><label for='value_8'>opacity(30%)</label></div>
<div class='radio'><input autocomplete='off' type='radio' name='radio_position' onclick=click_position(this) id='value_9' value='none'/><label for='value_1'><label for='value_9'>saturate(8)</label></div>
<div class='radio'><input autocomplete='off' type='radio' name='radio_position' onclick=click_position(this) id='value_10' value='none'/><label for='value_1'><label for='value_10'>sepia(100%)</label></div>
<div class='radio'><input autocomplete='off' type='radio' name='radio_position' onclick=click_position(this) id='value_11' value='none'/><label for='value_1'><label for='value_11'>contrast(200%) brightness(150%)</label></div>
<div class='radio'><input autocomplete='off' type='radio' name='radio_position' onclick=click_position(this) id='value_12' value='none'/><label for='value_1'><label for='value_12'>brightness(200%)</label></div>
</form>";
}
?>
</body>
</html>
I think I just need the proper syntax. 我想我只需要适当的语法。
1 个解决方案
解决方案1
0 已采纳 2016-04-11 19:36:53
I don't see where you've set the ID. 我看不到您在哪里设置ID。 Does changing: 是否更改：
$image1= '<img src="data:image/jpeg;base64,'.base64_encode( $image['url'] ).'" width="500" height="500" >';
to 至
$image1= '<img src="data:image/jpeg;base64,'.base64_encode( $image['url'] ).'" width="500" height="500" id="myImg" >';
work? 工作？
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