我有一个正在处理的 php 脚本，但尚未能够获取表单来保存信息并在验证错误时重新填充。我已经在各种网站上尝试了几个操作方法，但也许我错过了一些东西，因为它们大多有很多其他 PHP 行，但操作页面没有提供有关保存数据和重新填充所需的代码行的详细信息。下面是代码，如果有人有任何想法或可以指出我某个运行良好的地方，我将不胜感激，到目前为止我已经碰壁了。提前感谢！！
<?php
/*
Template Name: Post Submit Form
*/
?>
<?php if ( $user_ID > 0) { ?>
<?php if( 'POST' == $_SERVER['REQUEST_METHOD'] && !empty( $_POST['action'] ) && $_POST['action'] == "new_post") {
// Do some minor form validation to make sure there is content
if (isset($_POST['submit'])) {
$error = "";
if (!empty($_POST['title'])) {
$title = $_POST['title'];
} else {
$error .= "Please add a title<br />";
}
if (!empty($_POST['description'])) {
$description = $_POST['description'];
} else {
$error .= "Please add a description<br />";
}
if (!empty($_POST['post_tags'])) {
$post_tags = $_POST['post_tags'];
} else {
$error .= "Please add some keywords<br />";
}
if (!empty($_POST['externalurl'])) {
$externalurl = $_POST['externalurl'];
} else {
$error .= "Please add a URL to post<br />";
}
// IMAGE VALIDATION - CHECK IF THERE IS AN IMAGE AND THAT ITS THE RIGHT FILE TYPE AND RIGHT SIZE
if ($_FILES) {
foreach ($_FILES as $file => $array) {
//Check if the $_FILES is set and if the size is > 0 (if =0 it's empty)
if(isset($_FILES[$file]) && ($_FILES[$file]['size'] > 0)) {
$tmpName = $_FILES[$file]['tmp_name'];
list($width, $height, $type, $attr) = getimagesize($tmpName);
if($width<=899 || $height<=299)
{
$error .= "Image is to small. Minimum 900 pixels wide.<br />";
unlink($_FILES[$file]['tmp_name']);
}
// Get the type of the uploaded file. This is returned as "type/extension"
$arr_file_type = wp_check_filetype(basename($_FILES[$file]['name']));
$uploaded_file_type = $arr_file_type['type'];
// Set an array containing a list of acceptable formats
$allowed_file_types = array('image/jpg','image/jpeg');
// If the uploaded file is the right format
if(in_array($uploaded_file_type, $allowed_file_types)) {
} else { // wrong file type
$error .= "Please upload a .jpg type image<br />";
}
} else {
$error .= "Please add an image<br />";
}
} // end for each
} // end if
$tags = $_POST['post_tags'];
$externalurl = $_POST['externalurl'];
// ADD THE FORM INPUT TO $new_post ARRAY
if (empty($error)) {
$new_post = array(
'post_title' => $title,
'post_content' => $description,
'post_category' => array($_POST['cat']), // Usable for custom taxonomies too
'tags_input' => array($tags),
'post_status' => 'preview', // Choose: publish, preview, future, draft, etc.
'post_type' => 'post', //'post',page' or use a custom post type if you want to
'externalurl' => $externalurl
);
//SAVE THE POST
$pid = wp_insert_post($new_post);
//KEEPS OUR COMMA SEPARATED TAGS AS INDIVIDUAL
wp_set_post_tags($pid, $_POST['post_tags']);
//REDIRECT TO THE NEW POST ON SAVE
$link = get_permalink( $pid );
wp_redirect( $link );
//ADD OUR CUSTOM FIELDS
add_post_meta($pid, 'externalurl', $externalurl, true);
//INSERT OUR MEDIA ATTACHMENTS
if (!function_exists('wp_generate_attachment_metadata')){
require_once(ABSPATH . "wp-admin" . '/includes/image.php');
require_once(ABSPATH . "wp-admin" . '/includes/file.php');
require_once(ABSPATH . "wp-admin" . '/includes/media.php');
}
if ($_FILES) {
foreach ($_FILES as $file => $array) {
if ($_FILES[$file]['error'] !== UPLOAD_ERR_OK) {
return "upload error : " . $_FILES[$file]['error'];
}
$attach_id = media_handle_upload( $file, $pid );
}
}
if ($attach_id > 0){
//and if you want to set that image as Post then use:
update_post_meta($pid,'_thumbnail_id',$attach_id);
}
} // END SAVING POST
} // END VALIDATION
} // END THE IF STATEMENT THAT STARTED THE WHOLE FORM
//POST THE POST YO
do_action('wp_insert_post', 'wp_insert_post');
?>
<?php get_header(); ?>
<?php get_template_part('wrapper', 'start'); ?>
<article id="post-<?php the_ID(); ?>" <?php post_class('box mb20'); ?>>
<?php if ( have_posts() ) while ( have_posts() ) : the_post(); ?>
<div id="post-<?php the_ID(); ?>" <?php post_class(); ?>>
<?php if ( is_front_page() ) { ?>
<h2 class="entry-title"><?php the_title(); ?></h2>
<?php } else { ?>
<h1 class="entry-title"><?php the_title(); ?></h1>
<?php } ?>
<div class="form-content">
<?php
if (!empty($error)) {
echo '<p class="error"><strong>Your message was NOT sent<br/> The following error(s) returned:</strong><br/>' . $error . '</p>';
} elseif (!empty($success)) {
echo '<p class="success">' . $success . '</p>';
}
?>
<div class="entry-content clearfix mt20">
<?php the_content(); ?>
</div>
<div class="dashedline"></div>
<!-- Start FORM -->
<div class="submitpost-form">
<form id="new_post" name="new_post" method="post" action="" class="submitpost-form" enctype="multipart/form-data">
<!-- post name -->
<fieldset name="name">
<label for="title">Post Title:</label>
<input type="text" id="submitpost-entry" value="<?php echo $_SERVER['title']; ?>" tabindex="5" name="title" />
<p class="submitpost-entry-infotext">Choose a descriptive title that highlights the most important thing about your project. This will also be part of the URL. Do not use your name or genre in it.</p>
</fieldset>
<!-- External URL -->
<fieldset class="externalurl">
<label for="externalurl">Direct link (URL) to post page: (must include http://)</label>
<input type="text" value="<?php echo $_SERVER['externalurl']; ?>" id="submitpost-entry" tabindex="10" name="externalurl" onFocus="this.value=''"/>
<p class="submitpost-entry-infotext">This will be the URL linked to by the post. This should be a direct url to the webpage / article about the project. Do not link to your homepage or main portfolio page. The image submited below must appear on this page.</p>
</fieldset>
<!-- post tags -->
<fieldset class="tagsentry">
<label for="post_tags">Tags (comma separated):</label>
<input type="text" value="" tabindex="15" name="post_tags" id="submitpost-entry" />
<p class="submitpost-entry-infotext">Use a few descriptive words (all lowercase) to allow users to discover your work via exploring tags. Avoid using genre terms. Example: environmental, b&w, lifestyle. Keep below about ten.</p>
</fieldset>
<!-- post Category -->
<fieldset class="category">
<label for="cat">Genre:</label>
<?php wp_dropdown_categories( 'tab_index=20&taxonomy=category&hide_empty=0&exclude=1' ); ?>
<p class="submitpost-entry-infotext" style="position:relative; top:-14px;">Select the most suitable genre for your work. If you have a genre suggestion please let us know via the contact page.</p>
</fieldset>
<!-- authors -->
<fieldset class="images">
<label for="bottle_front">Image</label>
<input type="file" name="Image" id="image" tabindex="25" />
<p class="submitpost-entry-infotext">Images must be .jpg format with a minimum of 900 pixels wide and be less than 600kb in size.</p>
</fieldset>
<!-- post Content -->
<fieldset class="submitpostcontent">
<label for="description">Description:</label>
<textarea id="submitpost-message" tabindex="30" name="description" rows="10"></textarea>
<p class="submitpost-entry-infotext" >Enter more detail about the project or piece, the first 40 words will be displayed on the grid page. Any extra text will show on the post page. Do not compose in this field to avoid loosing text. Spell check before submiting! Profanity or offensive text will not be published. </p>
</fieldset>
<fieldset class="submit">
<input type="submit" value="Post Review" tabindex="40" id="submit" name="submit" />
</fieldset>
<input type="hidden" name="action" value="new_post" />
<?php wp_nonce_field( 'new-post' ); ?>
</form>
</div> <!-- END WPCF7 -->
<!-- END OF FORM -->
<?php wp_link_pages( array( 'before' => '<div class="page-link">' . __( 'Pages:', 'twentyten' ), 'after' => '</div>' ) ); ?>
<?php edit_post_link( __( 'Edit', 'twentyten' ), '<span class="edit-link">', '</span>' ); ?>
</div><!-- .entry-content -->
</div><!-- #post-## -->
<?php comments_template( '', true ); ?>
<?php endwhile; // end of the loop. ?>
</article>
<?php get_template_part('wrapper', 'end'); ?>
<?php get_footer(); ?>
<?php } else { ?>
<?php get_header(); ?>
<?php get_template_part('wrapper', 'start'); ?>
<?php while (have_posts()) : the_post(); ?>
<article id="post-<?php the_ID(); ?>" <?php post_class('box mb20'); ?>>
<header class="entry-header">
<h1 class="entry-title"><?php the_title(); ?></h1>
</header>
<div class="entry-content clearfix mt20">
Message for non logged in users.
</div>
</article>
<?php comments_template(); ?>
<?php endwhile; ?>
<?php get_template_part('wrapper', 'end'); ?>
<?php get_footer(); ?>
<?php }; ?>
为了避免未定义的索引错误，您应该使用以下行：
<form>
<input type="text" id="someField" name="title" value="<?php echo !empty( $_POST['title'] ) ? $_POST['title'] : ''?>" />
</form>
干杯
这是它应该如何工作：
<form id="new_post" name="new_post" method="post" action="this_form.php" class="submitpost-form" enctype="multipart/form-data">
<input type="text" id="submitpost-entry" value="<?php echo $_POST['title']; ?>" tabindex="5" name="title" />
。依此类推，用帖子数据填充输入字段值。