WordPress函数get_the_content()用法 调用当前文章的正文内容

描述：

获取当前文章的正文内容

用法：

<?php get_the_content( $more_link_text, $stripteaser ) ?>

参数：

$more_link_text

(string) (可选) 当有更多文本时的内容。

默认值: null

$stripteaser

(boolean) (可选) 在更多的文本之前删除摘要内容。

默认值: false

示例：

<?php
$content = get_the_content('Read more');
print $content;
?>

源文件：

unction get_the_content( $more_link_text = null, $strip_teaser = false, $post = null ) {
global $page, $more, $preview, $pages, $multipage;

$_post = get_post( $post );

if ( ! ( $_post instanceof WP_Post ) ) {
return '';
}

if ( null === $post ) {
$elements = compact( 'page', 'more', 'preview', 'pages', 'multipage' );
} else {
$elements = generate_postdata( $_post );
}

if ( null === $more_link_text ) {
$more_link_text = sprintf(
'<span aria-label="%1$s">%2$s</span>',
sprintf(
/* translators: %s: Post title. */
__( 'Continue reading %s' ),
the_title_attribute(
array(
'echo' => false,
'post' => $_post,
)
)
),
__( '(more&hellip;)' )
);
}

$output = '';
$has_teaser = false;

// If post password required and it doesn't match the cookie.
if ( post_password_required( $_post ) ) {
return get_the_password_form( $_post );
}

if ( $elements['page'] > count( $elements['pages'] ) ) { // if the requested page doesn't exist
$elements['page'] = count( $elements['pages'] ); // give them the highest numbered page that DOES exist
}

$page_no = $elements['page'];
$content = $elements['pages'][ $page_no - 1 ];
if ( preg_match( '/<!--more(.*?)?-->/', $content, $matches ) ) {
if ( has_block( 'more', $content ) ) {
// Remove the core/more block delimiters. They will be left over after $content is split up.
$content = preg_replace( '/<!-- /?wp:more(.*?) -->/', '', $content );
}

$content = explode( $matches[0], $content, 2 );

if ( ! empty( $matches[1] ) && ! empty( $more_link_text ) ) {
$more_link_text = strip_tags( wp_kses_no_null( trim( $matches[1] ) ) );
}

$has_teaser = true;
} else {
$content = array( $content );
}

if ( false !== strpos( $_post->post_content, '<!--noteaser-->' ) && ( ! $elements['multipage'] || $elements['page'] == 1 ) ) {
$strip_teaser = true;
}

$teaser = $content[0];

if ( $elements['more'] && $strip_teaser && $has_teaser ) {
$teaser = '';
}

$output .= $teaser;

if ( count( $content ) > 1 ) {
if ( $elements['more'] ) {
$output .= '<span id="more-' . $_post->ID . '"></span>' . $content[1];
} else {
if ( ! empty( $more_link_text ) ) {

/**
* Filters the Read More link text.
*
* @since 2.8.0
*
* @param string $more_link_element Read More link element.
* @param string $more_link_text Read More text.
*/
$output .= apply_filters( 'the_content_more_link', ' <a href="' . get_permalink( $_post ) . "#more-{$_post->ID}" class="more-link">$more_link_text</a>", $more_link_text );
}
$output = force_balance_tags( $output );
}
}

return $output;
}