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File Name : class-wpseo-content-images.php

<?php
/**
 * WPSEO plugin file.
 *
 * @package WPSEO
 */

/**
 * WPSEO_Content_Images.
 */
class WPSEO_Content_Images {

/**
	 * Retrieves images from the post content.
	 *
	 * @param int          $post_id The post ID.
	 * @param WP_Post|null $post    The post object.
	 *
	 * @return array An array of images found in this post.
	 */
	public function get_images( $post_id, $post = null ) {
		return $this->get_images_from_content( $this->get_post_content( $post_id, $post ) );
	}

/**
	 * Grabs the images from the content.
	 *
	 * @param string $content The post content string.
	 *
	 * @return array An array of image URLs.
	 */
	public function get_images_from_content( $content ) {
		if ( ! is_string( $content ) ) {
			return [];
		}

$content_images = $this->get_img_tags_from_content( $content );

$images = array_map( [ $this, 'get_img_tag_source' ], $content_images );
		$images = array_filter( $images );
		$images = array_unique( $images );
		$images = array_values( $images ); // Reset the array keys.
		return $images;
	}

/**
	 * Gets the image tags from a given content string.
	 *
	 * @param string $content The content to search for image tags.
	 *
	 * @return array An array of `<img>` tags.
	 */
	private function get_img_tags_from_content( $content ) {
		if ( strpos( $content, '<img' ) === false ) {
			return [];
		}

preg_match_all( '`<img [^>]+>`', $content, $matches );
		if ( isset( $matches[0] ) ) {
			return $matches[0];
		}

return [];
	}

/**
	 * Retrieves the image URL from an image tag.
	 *
	 * @param string $image Image HTML element.
	 *
	 * @return string|bool The image URL on success, false on failure.
	 */
	private function get_img_tag_source( $image ) {
		preg_match( '`src=(["\'])(.*?)\1`', $image, $matches );
		if ( isset( $matches[2] ) && filter_var( $matches[2], FILTER_VALIDATE_URL ) ) {
			return $matches[2];
		}
		return false;
	}

/**
	 * Retrieves the post content we want to work with.
	 *
	 * @param int                $post_id The post ID.
	 * @param WP_Post|array|null $post    The post.
	 *
	 * @return string The content of the supplied post.
	 */
	private function get_post_content( $post_id, $post ) {
		$post ??= get_post( $post_id );

if ( $post === null ) {
			return '';
		}

/**
		 * Filter: 'wpseo_pre_analysis_post_content' - Allow filtering the content before analysis.
		 *
		 * @param string  $post_content The Post content string.
		 * @param WP_Post $post         The current post.
		 */
		$content = apply_filters( 'wpseo_pre_analysis_post_content', $post->post_content, $post );

if ( ! is_string( $content ) ) {
			$content = '';
		}

return $content;
	}
}

Name	Type	Size	Owner/Group	Permission	Last Modified	Actions
.	dir	-	kaskqphv/kaskqphv	0755	2026-04-26 08:39:24
..	dir	-	kaskqphv/kaskqphv	0755	2026-04-26 08:39:27
exceptions	dir	-	kaskqphv/kaskqphv	0755	2026-04-26 08:39:24
options	dir	-	kaskqphv/kaskqphv	0755	2026-04-26 08:39:24
sitemaps	dir	-	kaskqphv/kaskqphv	0755	2026-04-26 08:39:24
class-addon-manager.php	text/x-php	26.54 KB	kaskqphv/kaskqphv	0644	2026-04-26 08:39:24
class-my-yoast-api-request.php	text/x-php	5.39 KB	kaskqphv/kaskqphv	0644	2026-04-26 08:39:24
class-post-type.php	text/x-php	3.89 KB	kaskqphv/kaskqphv	0644	2026-04-26 08:39:24
class-rewrite.php	text/x-php	7.58 KB	kaskqphv/kaskqphv	0644	2026-04-26 08:39:24
class-upgrade-history.php	text/x-php	3.04 KB	kaskqphv/kaskqphv	0644	2026-04-26 08:39:24
class-upgrade.php	text/x-php	55.3 KB	kaskqphv/kaskqphv	0644	2026-04-26 08:39:24
class-wpseo-admin-bar-menu.php	text/x-php	28.16 KB	kaskqphv/kaskqphv	0644	2026-04-26 08:39:24
class-wpseo-content-images.php	text/x-php	2.59 KB	kaskqphv/kaskqphv	0644	2026-04-26 08:39:24
class-wpseo-custom-fields.php	text/x-php	1.73 KB	kaskqphv/kaskqphv	0644	2026-04-26 08:39:24
class-wpseo-custom-taxonomies.php	text/x-php	1.59 KB	kaskqphv/kaskqphv	0644	2026-04-26 08:39:24
class-wpseo-image-utils.php	text/x-php	15.03 KB	kaskqphv/kaskqphv	0644	2026-04-26 08:39:24
class-wpseo-installation.php	text/x-php	1.17 KB	kaskqphv/kaskqphv	0644	2026-04-26 08:39:24
class-wpseo-meta.php	text/x-php	34.17 KB	kaskqphv/kaskqphv	0644	2026-04-26 08:39:24
class-wpseo-primary-term.php	text/x-php	1.7 KB	kaskqphv/kaskqphv	0644	2026-04-26 08:39:24
class-wpseo-rank.php	text/x-php	7.38 KB	kaskqphv/kaskqphv	0644	2026-04-26 08:39:24
class-wpseo-replace-vars.php	text/x-php	51.46 KB	kaskqphv/kaskqphv	0644	2026-04-26 08:39:24
class-wpseo-replacement-variable.php	text/x-php	1.34 KB	kaskqphv/kaskqphv	0644	2026-04-26 08:39:24
class-wpseo-shortlinker.php	text/x-php	1.11 KB	kaskqphv/kaskqphv	0644	2026-04-26 08:39:24
class-wpseo-statistics.php	text/x-php	1.41 KB	kaskqphv/kaskqphv	0644	2026-04-26 08:39:24
class-wpseo-utils.php	text/x-php	28.45 KB	kaskqphv/kaskqphv	0644	2026-04-26 08:39:24
class-yoast-dynamic-rewrites.php	text/x-php	5.24 KB	kaskqphv/kaskqphv	0644	2026-04-26 08:39:24
date-helper.php	text/x-php	1.71 KB	kaskqphv/kaskqphv	0644	2026-04-26 08:39:24
index.php	text/x-php	38 B	kaskqphv/kaskqphv	0644	2026-04-26 08:39:24
interface-wpseo-wordpress-ajax-integration.php	text/x-php	294 B	kaskqphv/kaskqphv	0644	2026-04-26 08:39:24
interface-wpseo-wordpress-integration.php	text/x-php	348 B	kaskqphv/kaskqphv	0644	2026-04-26 08:39:24
language-utils.php	text/x-php	1.28 KB	kaskqphv/kaskqphv	0644	2026-04-26 08:39:24
wpseo-functions-deprecated.php	text/x-php	68 B	kaskqphv/kaskqphv	0644	2026-04-26 08:39:24
wpseo-functions.php	text/x-php	9 KB	kaskqphv/kaskqphv	0644	2026-04-26 08:39:24
wpseo-non-ajax-functions.php	text/x-php	1.56 KB	kaskqphv/kaskqphv	0644	2026-04-26 08:39:24

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