WordPress开发教程：更改WordPress后台LOGO及链接

站长朋友们在使用的时候，很多时候想更换掉后台的LOGO以及对应的链接，这篇里，我们就来简单介绍一下方法，感兴趣的朋友可以学习一下。

切换到主题目录，打开functions.PHP 文件，加入以下代码：

Crayon-5c891cef108b2824144946" class="Crayon-Syntax Crayon-theme-classic Crayon-font-monaco Crayon-os-pc print-yes notranslate" data-settings=" minimize scroll-mouSEOver" style=" margin-top: 12px; margin-bottom: 12px; font-size: 12px !important; line-height: 15px !important;">

Crayon-toolbar" data-settings=" mouSEOver overlay hide delay" style="font-size: 12px !important;height: 18px !important; line-height: 18px !important;">Crayon-title">functions.PHP

Crayon-tools" style="font-size: 12px !important;height: 18px !important; line-height: 18px !important;">Crayon-mixed-highlight" title="Contains Mixed Languages">

Crayon-button Crayon-nums-button" title="Toggle Line Numbers">

Crayon-button-icon">

Crayon-button Crayon-plain-button" title="Toggle Plain Code">

Crayon-button-icon">

Crayon-button Crayon-wrap-button" title="Toggle Line Wrap">

Crayon-button-icon">

Crayon-button Crayon-expand-button" title="Expand Code">

Crayon-button-icon">

Crayon-button Crayon-copy-button" title="Copy">

Crayon-button-icon">

Crayon-button Crayon-popup-button" title="Open Code In New Window">

Crayon-button-icon">

Crayon-info" style="min-height: 16.8px !important; line-height: 16.8px !important;">

Crayon-plain-wrap">

Crayon</a>-plain print-no" data-settings="dblclick" readonly style="-moz-tab-size:4; -o-tab-size:4; -webkit-tab-size:4; tab-size:4; font-size: 12px !important; line-height: 15px !important;">
<?<a href="https://www.f2er.com/tag/PHP/" target="_blank" class="keywords">PHP</a>
//更改登陆<a href="https://www.f2er.com/tag/yemian/" target="_blank" class="keywords">页面</a><a href="https://www.f2er.com/tag/logo/" target="_blank" class="keywords">logo</a>
function my_custom_login_<a href="https://www.f2er.com/tag/logo/" target="_blank" class="keywords">logo</a>() {
echo '<style type="text/css">
.login h1 a {width:100%;background-size: 100%; background-repeat:center center; background-image:url('.get_bloginfo('stylesheet_directory').'/images/<a href="https://www.f2er.com/tag/logo/" target="_blank" class="keywords">logo</a>.jpg) !important; }
</style>';
}
add_action('login_head','my_custom_login_<a href="https://www.f2er.com/tag/logo/" target="_blank" class="keywords">logo</a>');
//更改登陆<a href="https://www.f2er.com/tag/yemian/" target="_blank" class="keywords">页面</a>的URL
function put_my_url(){
return ('https://www.f2er.com/'); //换成您的URL
}
add_filter('login_headerurl','put_my_url');
//更改登陆<a href="https://www.f2er.com/tag/yemian/" target="_blank" class="keywords">页面</a>鼠标悬停<a href="https://www.f2er.com/tag/xianshi/" target="_blank" class="keywords">显示</a>的<a href="https://www.f2er.com/tag/wenzi/" target="_blank" class="keywords">文字</a>
function put_my_title(){
return ('91<a href="https://www.f2er.com/tag/wordpress/" target="_blank" class="keywords">wordpress</a>'); //替换成您想<a href="https://www.f2er.com/tag/xianshi/" target="_blank" class="keywords">显示</a>的<a href="https://www.f2er.com/tag/wenzi/" target="_blank" class="keywords">文字</a>
}
add_filter('login_headertitle','put_my_title');
?>

Crayon-main" style="">Crayon-table">Crayon-row">

Crayon-nums " data-settings="show">

Crayon-nums-content" style="font-size: 12px !important; line-height: 15px !important;">

Crayon-num" data-line="Crayon-5c891cef108b2824144946-1">1

Crayon-num Crayon-striped-num" data-line="Crayon-5c891cef108b2824144946-2">2

Crayon-num" data-line="Crayon-5c891cef108b2824144946-3">3

Crayon-num Crayon-striped-num" data-line="Crayon-5c891cef108b2824144946-4">4

Crayon-num" data-line="Crayon-5c891cef108b2824144946-5">5

Crayon-num Crayon-striped-num" data-line="Crayon-5c891cef108b2824144946-6">6

Crayon-num" data-line="Crayon-5c891cef108b2824144946-7">7

Crayon-num Crayon-striped-num" data-line="Crayon-5c891cef108b2824144946-8">8

Crayon-num" data-line="Crayon-5c891cef108b2824144946-9">9

Crayon-num Crayon-striped-num" data-line="Crayon-5c891cef108b2824144946-10">10

Crayon-num" data-line="Crayon-5c891cef108b2824144946-11">11

Crayon-num Crayon-striped-num" data-line="Crayon-5c891cef108b2824144946-12">12

Crayon-num" data-line="Crayon-5c891cef108b2824144946-13">13

Crayon-num Crayon-striped-num" data-line="Crayon-5c891cef108b2824144946-14">14

Crayon-num" data-line="Crayon-5c891cef108b2824144946-15">15

Crayon-num Crayon-striped-num" data-line="Crayon-5c891cef108b2824144946-16">16

Crayon-num" data-line="Crayon-5c891cef108b2824144946-17">17

Crayon-num Crayon-striped-num" data-line="Crayon-5c891cef108b2824144946-18">18

Crayon-num" data-line="Crayon-5c891cef108b2824144946-19">19

Crayon-code">

Crayon-pre" style="font-size: 12px !important; line-height: 15px !important; -moz-tab-size:4; -o-tab-size:4; -webkit-tab-size:4; tab-size:4;">

Crayon-line" id="Crayon-5c891cef108b2824144946-1">Crayon-ta">PHP

Crayon-line Crayon-striped-line" id="Crayon-5c891cef108b2824144946-2">Crayon-c">//更改登陆页面 logo

Crayon-line" id="Crayon-5c891cef108b2824144946-3">Crayon-t">functionCrayon-h"> Crayon-e">my_custom_login_logoCrayon-sy">(Crayon-sy">)Crayon-h"> Crayon-sy">{

Crayon-line Crayon-striped-line" id="Crayon-5c891cef108b2824144946-4">Crayon-k ">echoCrayon-h"> Crayon-s">''Crayon-sy">;

Crayon-line" id="Crayon-5c891cef108b2824144946-7">Crayon-sy">}

Crayon-line Crayon-striped-line" id="Crayon-5c891cef108b2824144946-8">Crayon-e">add_actionCrayon-sy">(Crayon-s">'login_head'Crayon-sy">,Crayon-h"> Crayon-s">'my_custom_login_logo'Crayon-sy">)Crayon-sy">;

Crayon-line" id="Crayon-5c891cef108b2824144946-9">Crayon-c">//更改登陆页面的URL

Crayon-line Crayon-striped-line" id="Crayon-5c891cef108b2824144946-10">Crayon-t">functionCrayon-h"> Crayon-e">put_my_urlCrayon-sy">(Crayon-sy">)Crayon-sy">{

Crayon-line" id="Crayon-5c891cef108b2824144946-11">Crayon-k ">returnCrayon-h"> Crayon-sy">(Crayon-s">'https://www.f2er.com/'Crayon-sy">)Crayon-sy">;Crayon-h"> Crayon-c">//换成您的URL

Crayon-line Crayon-striped-line" id="Crayon-5c891cef108b2824144946-12">Crayon-sy">}

Crayon-line" id="Crayon-5c891cef108b2824144946-13">Crayon-e">add_filterCrayon-sy">(Crayon-s">'login_headerurl'Crayon-sy">,Crayon-h"> Crayon-s">'put_my_url'Crayon-sy">)Crayon-sy">;

Crayon-line Crayon-striped-line" id="Crayon-5c891cef108b2824144946-14">Crayon-c">//更改登陆页面鼠标悬停显示的文字

Crayon-line" id="Crayon-5c891cef108b2824144946-15">Crayon-t">functionCrayon-h"> Crayon-e">put_my_titleCrayon-sy">(Crayon-sy">)Crayon-sy">{

Crayon-line Crayon-striped-line" id="Crayon-5c891cef108b2824144946-16">Crayon-k ">returnCrayon-h"> Crayon-sy">(Crayon-s">'91wordpress'Crayon-sy">)Crayon-sy">;Crayon-h"> Crayon-c">//替换成您想显示的文字

Crayon-line" id="Crayon-5c891cef108b2824144946-17">Crayon-sy">}

Crayon-line Crayon-striped-line" id="Crayon-5c891cef108b2824144946-18">Crayon-e">add_filterCrayon-sy">(Crayon-s">'login_headertitle'Crayon-sy">,Crayon-h"> Crayon-s">'put_my_title'Crayon-sy">)Crayon-sy">;

Crayon-line" id="Crayon-5c891cef108b2824144946-19">

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