我一直在玩弄 image upload example from W3Schools ，但我想更改上传后出现的输出的字体大小。我试过用 id="up_finished" 的 div 标签包围 php 代码，并制作了这样的 CSS 代码:
#up_finished {
font-size: 10px;
}
我的代码是这样的:
<form>
<center>
<div id="upfinished">
<?php
$img_org_name = $_FILES["file"]["name"];
$img_ext = "." . pathinfo($img_org_name, PATHINFO_EXTENSION);
$img_name = generateKey() . $img_ext;
$img_type = $_FILES["file"]["type"];
$img_error = $_FILES["file"]["error"];
$img_size = $_FILES["file"]["size"];
$img_tmp = $_FILES["file"]["tmp_name"];
if ((($img_type == "image/gif")
|| ($img_type == "image/png")
|| ($img_type == "image/jpeg")
|| ($img_type == "image/tiff")
|| ($img_type == "image/bmp")
|| ($img_type == "image/pjpeg"))
&& ($img_size < 4194304))
{
if ($img_error > 0)
{
echo "Error: " . $img_error . "<br />";
} else {
echo "Upload: " . $img_name . "<br />";
// echo "Type: " . $img_type . "<br />";
echo "Size: " . round(($img_size / 1048576), 2) . " Mb<br />";
if (file_exists("img/" . $img_name))
{
echo $img_name . " already exists. ";
} else {
move_uploaded_file($img_tmp, "img/" . $img_name);
echo "Stored in: " . "img/" . $img_name;
}
}
} else {
echo "Error! Try re-submiting the image <br />
Error ID: " . $img_error . "<br />";
}
function generateKey()
{
$chars = "abcdefghijkmnopqrstuvwxyz023456789";
srand((double)microtime()*1000000);
$i = 0;
$pass = '' ;
while ($i <= 3)
{
$num = rand() % 33;
$tmp = substr($chars, $num, 1);
$pass = $pass . $tmp;
$i++;
}
return $pass;
}
?>
</div>
</center>
</form>
但是什么也没发生。我该怎么办？
最佳答案
@Nathan Campos:如果下面的代码示例也不起作用，则可能是其他原因覆盖了您的字体大小；另一种样式表设置或很可能是浏览器设置。
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="content-type" content="text/html; charset=UTF-8" />
<title>questions/5285643</title>
<style type="text/css">
<!--
#up_finished {
font-size: 10px;
}
#up_finished span {
/* for demonstration purposes */
font-size: 16px;
}
// -->
</style>
</head>
<body>
<form>
<center>
<div id="up_finished">
<?php
/* Replace this with your PHP code */
?>
<br />Filler text which should be
10px large<br />
<span>Filler text which should be
16px large</span>
</div>
</center>
</form>
</body>
</html>
jsFiddle:http://jsfiddle.net/phF9b/查看运行中的代码。
关于html - 更改 PHP Echo 输出的字体大小，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/5285643/