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Html 更改PHP Echo输出的字体大小_Html_Css_Font Size - Fatal编程技术网

Html 更改PHP Echo输出的字体大小

Html 更改PHP Echo输出的字体大小,html,css,font-size,Html,Css,Font Size,我一直在使用,但我想更改上传后显示的输出的字体大小。我试着用带有id=“up\u finished”的div标记包围php代码,并生成如下CSS代码: #up_finished { font-size: 10px; } <form> <center> <div id="upfinished"> <?php $img_org_name = $_FILES["file"

我一直在使用,但我想更改上传后显示的输出的字体大小。我试着用带有
id=“up\u finished”
div
标记包围php代码,并生成如下CSS代码:

#up_finished {
    font-size: 10px;
}
<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>
我的代码如下:

#up_finished {
    font-size: 10px;
}
<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>


但什么也没发生。我该怎么办?

@Nathan Campos:如果下面的代码示例也不起作用,则可能有其他内容覆盖了您的字体大小;或者是另一个样式表设置,或者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>

问题/5285643

填充文本应为 10px大的
填充文本应为 16px大

jsFiddle:查看正在运行的代码。

@Nathan Campos:如果下面的代码示例也不起作用,则可能有其他内容覆盖了您的字体大小;或者是另一个样式表设置,或者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>

问题/5285643

填充文本应为 10px大的
填充文本应为 16px大

jsFiddle:查看实际的代码。

这样或类似的方法应该可以工作。你能展示完整的代码吗?你是否添加了其他标签/代码,使之成为一个真正的HTML页面,而不仅仅是一个输出文本的PHP脚本?(像doctype声明、html/body标记等)不允许在id属性中使用unserscrore,也许你的浏览器忽略了CSS规则?在Firebug或Chrome inspector中检查CSS规则是什么applied@freddyK.:允许在#ids中加下划线:@freddy K.:这篇文章是2001年写的,当时CSS2没有得到广泛支持。除非你仍然支持Netscape浏览器或IE5,否则它就不再相关了。那样应该可以。你能展示完整的代码吗?你是否添加了其他标签/代码,使之成为一个真正的HTML页面,而不仅仅是一个输出文本的PHP脚本?(像doctype声明、html/body标记等)不允许在id属性中使用unserscrore,也许你的浏览器忽略了CSS规则?在Firebug或Chrome inspector中检查CSS规则是什么applied@freddyK.:允许在#ids中加下划线:@freddy K.:这篇文章是2001年写的,当时CSS2没有得到广泛支持。除非您仍然支持Netscape浏览器或IE5,否则它不再相关。