给WP开发爱好者的12个提示案例分享

1.js与CSS的引入

wp_enqueue_script()与wp_enqueue_style()

http://codex.wordpress.org/Function_Reference/wp_enqueue_script#Default_scripts_included_with_WordPress

2.不用Wordpress自带的某些脚本

function my_scripts_method() {
    wp_deregister_script( 'jquery' );
    wp_register_script( 'jquery', get_template_directory_uri() . '/js/jquery-new.js');
    wp_enqueue_script( 'jquery' );
}
add_action('wp_enqueue_scripts', 'my_scripts_method');

3.指定jpg/jpeg图片的质量

add_filter( 'jpeg_quality', 'sl_jpeg_quality' );
function sl_jpeg_quality() {
    return 100;
}

4.Session设置

add_action( 'init', 'sl_session_start' );
function sl_session_start() {
    if ( !session_id() ) {
        session_start();
    }
}

5.Wordpress原生的页面分页导航

// Pagination for a WordPress loop
$list = new WP_Query( $query_args );
$pagination = array(
    'base'       => str_replace( 99999, '%#%', get_pagenum_link( 99999 ) ),
    'format'     => '?paged=%#%',
    'current'    => max( 1, get_query_var( 'paged' ) ),
    'total'      => $list->max_num_pages,
    'next_text'  => 'next',
    'prev_text'  => 'previous'
);
echo '<div class="pagination primary-links">' . paginate_links( $pagination ) . '</div>';

// Pagination for anything
$list = range(1, 100);
$items_per_page = 12;
$pagination = array(
    'base'       => get_bloginfo( 'url' ) . '/mypage/%_%',
    'format'     => '?paged=%#%',
    'current'    => $_GET['current_page'],
    'total'      => ceil( max($list) / $items_per_page ),
    'next_text'  => 'go forth',
    'prev_text'  => 'go back'
);
echo '<div class="pagination primary-links">' . paginate_links( $pagination ) . '</div>';

6.文件上传

$upload = wp_upload_bits( $_FILES['myfile']['name'], null, file_get_contents( $_FILES['myfile']['tmp_name'] ) );
echo 'Well uploaded! The path to this file is ' . $upload['file'] . ' and the url to this file is ' . $upload['url'];

 

7.Wordpress自定义用户资料配置项

/////Add User Profile item
add_action( 'show_user_profile', 'sl_profile_fields' );
add_action( 'edit_user_profile', 'sl_profile_fields' );

function sl_profile_fields( $user ) {
?>

    <h3>社交网络</h3>

    <table class="form-table">

        <tr>
            <th><label for="weibo">SINA-WEIBO</label></th>

            <td>
                <input type="text" name="weibo" id="weibo" value="<?php echo esc_attr( get_the_author_meta( 'weibo', $user->ID ) ); ?>" /><br />
                <span class="description">新浪微博链接</span>
            </td>
        </tr>
    </table>

<?php
}
add_action( 'personal_options_update', 'sl_save_profile_fields' );
add_action( 'edit_user_profile_update', 'sl_save_profile_fields' );

function sl_save_profile_fields( $user_id ) {
    if ( !current_user_can( 'edit_user', $user_id ) )
        return false;
    update_user_meta( $user_id, 'weibo', $_POST['weibo'] );

}

8.Wordpress侧栏文本小工具支持短代码

add_filter( 'widget_text', 'do_shortcode' );

9.Wordpress自定义回滚版本

// To remove revisions
define( 'WP_POST_REVISIONS', FALSE );

// To limit them
define( 'WP_POST_REVISIONS', 5 );

10.个性化显示作者的评论

li.bypostauthor {
    background:#fafafa;
    color:#555;
}

11.缓存页面内容

//Storing Your Whole Page In A Variable
function callback($buffer) {
    return $buffer;
    }
function buffer_start() {
    ob_start("callback");
    }
function buffer_end() {
    ob_end_flush();
    }
add_action('wp_head', 'buffer_start');
add_action('wp_footer', 'buffer_end');

12.自定义Wordpress短代码

///Storing Your Whole Page In A Variable
function callback($buffer) {
    return $buffer;
    }
function buffer_start() {
    ob_start("callback");
    }
function buffer_end() {
    ob_end_flush();
    }
add_action('wp_head', 'buffer_start');
add_action('wp_footer', 'buffer_end');

此外：

remove_filter ('single_post_title', 'wptexturize');
remove_filter ('bloginfo', 'wptexturize');
remove_filter ('wp_title', 'wptexturize');
remove_filter ('category_description', 'wptexturize');
remove_filter ('list_cats', 'wptexturize');
remove_filter ('comment_author', 'wptexturize');
remove_filter ('comment_text', 'wptexturize');
remove_filter ('the_title', 'wptexturize');
remove_filter ('the_content', 'wptexturize');
remove_filter ('the_excerpt', 'wptexturize');