我使用以下代码在我的内容中放置一些广告代码.
<?PHP $content = apply_filters('the_content',$post->post_content); $content = explode (' ',$content); $halfway_mark = ceil(count($content) / 2); $first_half_content = implode(' ',array_slice($content,$halfway_mark)); $second_half_content = implode(' ',$halfway_mark)); echo $first_half_content.'...'; echo ' YOUR ADS CODE'; echo $second_half_content; ?>
如何修改此设置,以便我可以在仅文本段落之间同时放置2个广告(包含广告的< p> …< / p>不应包含图片或嵌入的视频).
我想避免使用jQuery.
我的用例示例……
>我想在本文中插入2个广告块.
>我希望第一个广告块在第一段之后.但是应删除第1段中的任何图像.
>对于第二个广告,它应该放在文章的后半部分中,在纯文本段落之间,这样广告代码在大量文本之间切换,并且永远不会非常接近嵌入的图像或视频等.
> 2个广告之间至少应有2个段落
这是我对这个问题的处理方法.很抱歉发布有点迟了(并且错过了赏金:-(),但这是一个忙碌的一周,所以我做了一切都是点点滴滴.
原文链接：https://www.f2er.com/php/130499.html快速响彻
>我没有删除第一段中的附件.我真的不明白为什么内容必须为广告而被破坏
>我在代码中做了很多检查,试图确保广告仅插入文本段落之间.仅文本段落被视为不包含img,li和ul标记的段落
>我已正确记录每个代码块,因此您可以轻松完成每个部分.如果有必要,我还添加了你需要注意的todo doc块
>我使用wptexturize将p标签应用于the_content.每个双折线构成一个段落
>根据需要修改并使用此代码.我已经对它进行了测试,因此我身上没有错误.
这是代码.希望这对你有用. * PS！所有这些都进入你的functions.PHP.您的模板文件不需要任何其他代码或mod
<?PHP add_filter( 'the_content','so_25888630_ad_between_paragraphs' ); function so_25888630_ad_between_paragraphs($content){ /**----------------------------------------------------------------------------- * * @author Pieter Goosen <https://stackoverflow.com/users/1908141/pieter-goosen> * @return Ads in between $content * @link https://stackoverflow.com/q/25888630/1908141 * * Special thanks to the following answers on my questions that helped me to * to achieve this * - https://stackoverflow.com/a/26032282/1908141 * - https://stackoverflow.com/a/25988355/1908141 * - https://stackoverflow.com/a/26010955/1908141 * - http://wordpress.stackexchange.com/a/162787/31545 * *------------------------------------------------------------------------------*/ if( in_the_loop() ){ //Simply make sure that these changes effect the main query only /**----------------------------------------------------------------------------- * * wptexturize is applied to the $content. This inserts p tags that will help to * split the text into paragraphs. The text is split into paragraphs after each * closing p tag. Remember,each double break constitutes a paragraph. * * @todo If you really need to delete the attachments in paragraph one,you want * to do it here before you start your foreach loop * *------------------------------------------------------------------------------*/ $closing_p = '</p>'; $paragraphs = explode( $closing_p,wptexturize($content) ); /**----------------------------------------------------------------------------- * * The amount of paragraphs is counted to determine add frequency. If there are * less than four paragraphs,only one ad will be placed. If the paragraph count * is more than 4,the text is split into two sections,$first and $second according * to the midpoint of the text. $totals will either contain the full text (if * paragraph count is less than 4) or an array of the two separate sections of * text * * @todo Set paragraph count to suite your needs * *------------------------------------------------------------------------------*/ $count = count( $paragraphs ); if( 4 >= $count ) { $totals = array( $paragraphs ); }else{ $midpoint = floor($count / 2); $first = array_slice($paragraphs,$midpoint ); if( $count%2 == 1 ) { $second = array_slice( $paragraphs,$midpoint,true ); }else{ $second = array_slice( $paragraphs,$midpoint-1,true ); } $totals = array( $first,$second ); } $new_paras = array(); foreach ( $totals as $key_total=>$total ) { /**----------------------------------------------------------------------------- * * This is where all the important stuff happens * The first thing that is done is a work count on every paragraph * Each paragraph is is also checked if the following tags,a,li and ul exists * If any of the above tags are found or the text count is less than 10,0 is * returned for this paragraph. ($p will hold these values for later checking) * If none of the above conditions are true,1 will be returned. 1 will represent * paragraphs that qualify for add insertion,and these will determine where an ad * will go * returned for this paragraph. ($p will hold these values for later checking) * * @todo You can delete or add rules here to your liking * *------------------------------------------------------------------------------*/ $p = array(); foreach ( $total as $key_paras=>$paragraph ) { $word_count = count(explode(' ',$paragraph)); if( preg_match( '~<(?:img|ul|li)[ >]~',$paragraph ) || $word_count < 10 ) { $p[$key_paras] = 0; }else{ $p[$key_paras] = 1; } } /**----------------------------------------------------------------------------- * * Return a position where an add will be inserted * This code checks if there are two adjacent 1's,and then return the second key * The ad will be inserted between these keys * If there are no two adjacent 1's,"no_ad" is returned into array $m * This means that no ad will be inserted in that section * *------------------------------------------------------------------------------*/ $m = array(); foreach ( $p as $key=>$value ) { if( 1 === $value && array_key_exists( $key-1,$p ) && $p[$key] === $p[$key-1] && !$m){ $m[] = $key; }elseif( !array_key_exists( $key+1,$p ) && !$m ) { $m[] = 'no-ad'; } } /**----------------------------------------------------------------------------- * * Use two different ads,one for each section * Only ad1 is displayed if there is less than 4 paragraphs * * @todo Replace "PLACE YOUR ADD NO 1 HERE" with your add or code. Leave p tags * @todo I will try to insert widgets here to make it dynamic * *------------------------------------------------------------------------------*/ if( $key_total == 0 ){ $ad = array( 'ad1' => '<p>PLACE YOUR ADD NO 1 HERE</p>' ); }else{ $ad = array( 'ad2' => '<p>PLACE YOUR ADD NO 2 HERE</p>' ); } /**----------------------------------------------------------------------------- * * This code loops through all the paragraphs and checks each key against $mail * and $key_para * Each paragraph is returned to an array called $new_paras. $new_paras will * hold the new content that will be passed to $content. * If a key matches the value of $m (which holds the array key of the position * where an ad should be inserted) an add is inserted. If $m holds a value of * 'no_ad',no ad will be inserted * *------------------------------------------------------------------------------*/ foreach ( $total as $key_para=>$para ) { if( !in_array( 'no_ad',$m ) && $key_para === $m[0] ){ $new_paras[key($ad)] = $ad[key($ad)]; $new_paras[$key_para] = $para; }else{ $new_paras[$key_para] = $para; } } } /**----------------------------------------------------------------------------- * * $content should be a string,not an array. $new_paras is an array,which will * not work. $new_paras are converted to a string with implode,and then passed * to $content which will be our new content * *------------------------------------------------------------------------------*/ $content = implode( ' ',$new_paras ); } return $content; }
编辑
从你的评论：
>您应该使用以下代码来调试< pre><？PHP var_dump($NAME_OF_VARIABLE); ？>< /预取代.对于您的第一个问题,我将使用？>< pre><？PHP var_dump($paragraph); ？>< / pre><？PHP就在这行$paragraph = explode($closing_p,wpautop($content));准确地看看内容是如何分开的.这将让您了解您的内容是否正确分割.
>还使用？>< pre><？PHP var_dump($p); ？>< / pre><？PHP就在此行之后$p = array();检查特定段落的值.请记住,带有img,li和ul标签的段落应该有0,而且段落少于10个单词.其余的应该是1
>编辑 – >解决了剥离段落的问题.谢谢你指出这个漏洞给我.从未意识到这一点我已经更新了代码,所以只需复制并粘贴它即可
编辑2
请注意,您无法使用所使用的在线工具测试代码.这并不是the_content()输出内容的真实反映.您使用在线工具看到的输出将被过滤并标记,然后作为the_content()发送到屏幕.如果您使用Google Chrome等浏览器检查输出,则会看到正确应用了p标记.
