開始，讓我們創(chuàng)建一個簡單的按鈕，該按鈕在我們網(wǎng)站的后端

>我前面提到過，我們將在本文中使用匿名函數(shù)（為簡單起見，我將它們稱為關(guān)閉），其原因是，它并不值得用一堆函數(shù)污染全局名稱空間本質(zhì)上是投擲功能。關(guān)閉很棒，如果您不熟悉它們，我強(qiáng)烈建議您閱讀它們。如果您來自JavaScript或Ruby背景，您會感到賓至如歸。>

<span>/**
</span><span> * Show 'insert posts' button on backend
</span><span> */
</span><span>add_action( "admin_notices", function() {
</span>    <span>echo "<div class='updated'>";
</span>    <span>echo "<p>";
</span>    <span>echo "To insert the posts into the database, click the button to the right.";
</span>    <span>echo "<a class='button button-primary' style='margin:0.25em 1em' href='{$_SERVER["REQUEST_URI"]}&insert_sitepoint_posts'>Insert Posts</a>";
</span>    <span>echo "</p>";
</span>    <span>echo "</div>";
</span><span>});</span>

<span>/**
</span><span> * Show 'insert posts' button on backend
</span><span> */
</span><span>add_action( "admin_notices", function() {
</span>    <span>echo "<div class='updated'>";
</span>    <span>echo "<p>";
</span>    <span>echo "To insert the posts into the database, click the button to the right.";
</span>    <span>echo "<a class='button button-primary' style='margin:0.25em 1em' href='{$_SERVER["REQUEST_URI"]}&insert_sitepoint_posts'>Insert Posts</a>";
</span>    <span>echo "</p>";
</span>    <span>echo "</div>";
</span><span>});</span>

>

>

<span>/**
</span><span> * Create and insert posts from CSV files
</span><span> */
</span><span>add_action( "admin_init", function() {
</span>	<span>global $wpdb;
</span>
	<span>// ... code will go here
</span><span>});</span>

>

<span>// ...
</span>
<span>global $wpdb;
</span>
<span>// I'd recommend replacing this with your own code to make sure
</span><span>//  the post creation _only_ happens when you want it to.
</span><span>if ( ! isset( $_GET["insert_sitepoint_posts"] ) ) {
</span>	<span>return;
</span><span>}
</span>
<span>// Change these to whatever you set
</span><span>$sitepoint = array(
</span>	<span>"custom-field" => "sitepoint_post_attachment",
</span>	<span>"custom-post-type" => "sitepoint_posts"
</span><span>);
</span>
<span>// ...</span>

<span>// ...
</span>
<span>// Get the data from all those CSVs!
</span><span>$posts = function() {
</span>	<span>$data = array();
</span>	<span>$errors = array();
</span>
	<span>// Get array of CSV files
</span>	<span>$files = glob( __DIR__ . "/data/*.csv" );
</span>
	<span>foreach ( $files as $file ) {
</span>
		<span>// Attempt to change permissions if not readable
</span>		<span>if ( ! is_readable( $file ) ) {
</span>			<span>chmod( $file, 0744 );
</span>		<span>}
</span>
		<span>// Check if file is writable, then open it in 'read only' mode
</span>		<span>if ( is_readable( $file ) && $_file = fopen( $file, "r" ) ) {
</span>
			<span>// To sum this part up, all it really does is go row by
</span>			<span>//  row, column by column, saving all the data
</span>			<span>$post = array();
</span>
			<span>// Get first row in CSV, which is of course the headers
</span>	    	<span>$header = fgetcsv( $_file );
</span>
	        <span>while ( $row = fgetcsv( $_file ) ) {
</span>
	            <span>foreach ( $header as $i => $key ) {
</span>                    <span>$post[$key] = $row[$i];
</span>                <span>}
</span>
                <span>$data[] = $post;
</span>	        <span>}
</span>
			<span>fclose( $_file );
</span>
		<span>} else {
</span>			<span>$errors[] = "File '<span><span>$file</span>' could not be opened. Check the file's permissions to make sure it's readable by your server."</span>;
</span>		<span>}
</span>	<span>}
</span>
	<span>if ( ! empty( $errors ) ) {
</span>		<span>// ... do stuff with the errors
</span>	<span>}
</span>
	<span>return $data;
</span><span>};
</span>
<span>// ...</span>

>因此，在下面的代碼中，有很多數(shù)組和數(shù)據(jù)正在傳遞。我繼續(xù)評論代碼，以便您更好地了解所有內(nèi)容?；旧?，我們將帖子插入使用WP_INSERT_POST，并保存返回的帖子ID以供以后使用。然后，我們抓住上傳目錄，并通過創(chuàng)建上傳文件的路徑來創(chuàng)建所需的附件元數(shù)據(jù)（在上傳/sitepoint-atcharthments中）；然后最終抓住文件的名稱和擴(kuò)展名，我們將用來將附件插入我們新創(chuàng)建的帖子中。

<span>/**
</span><span> * Show 'insert posts' button on backend
</span><span> */
</span><span>add_action( "admin_notices", function() {
</span>    <span>echo "<div class='updated'>";
</span>    <span>echo "<p>";
</span>    <span>echo "To insert the posts into the database, click the button to the right.";
</span>    <span>echo "<a class='button button-primary' style='margin:0.25em 1em' href='{$_SERVER["REQUEST_URI"]}&insert_sitepoint_posts'>Insert Posts</a>";
</span>    <span>echo "</p>";
</span>    <span>echo "</div>";
</span><span>});</span>

>那么，下一步是什么？盡可能簡單地說：我們按下按鈕。我們所有的辛勤工作都將獲得回報（希望如此?。．?dāng)我們按下按鈕時，我們的代碼應(yīng)檢查帖子變量，然后將其貫穿我們的腳本并插入我們的帖子。很好，容易。這是我們所有人的視覺人員的屏幕截圖：

就是這樣！就像我之前承諾的那樣，這是本文中使用的所有代碼：

<span>/**
</span><span> * Create and insert posts from CSV files
</span><span> */
</span><span>add_action( "admin_init", function() {
</span>	<span>global $wpdb;
</span>
	<span>// ... code will go here
</span><span>});</span>

結(jié)論

不像我們最初想象的那樣硬。希望當(dāng)需要遷移使用自定義帖子類型和自定義字段的數(shù)據(jù)時，這可以作為許多人的資源。就像我在文章開頭所述的那樣，許多代碼（例如使用$ _POST變量的后端按鈕）不應(yīng)在生產(chǎn)站點(diǎn)中使用。本文中使用的代碼應(yīng)用作起點(diǎn)，而不是插件解決方案。> 我希望您喜歡這篇文章。如果您有任何疑問或評論，請隨時將它們留在下面，我會盡力回答它們并解決您遇到的任何問題?？鞓返木幋a！

>經(jīng)常詢問的問題（常見問題解答）從CSV數(shù)據(jù)中創(chuàng)建WordPress帖子