PHP If语句总是传递第一个语句

Question

我遇到了这个if语句的问题，它位于wordpress循环中。第一个if语句 - if ( $caption == "1") - 似乎有效，但第二个似乎总是通过，即使$image_title没有==那些字符串。

foreach ( $images as $attachment_id => $attachment ) {

        // $alt = get_post_meta($attachment->ID, '_wp_attachment_image_alt', true);
        $image_title = $attachment->post_title;
        $caption = $attachment->post_excerpt;
        $description = $attachment->post_content;

        $img_url = get_post_meta( $attachment->ID, '_gallery_link_url', true ); //WP Gallery Custom Links extra URL field


        if ( $caption == "1") { 

                echo '<div class="imagewrapb">';

                    if ($image_title == "Branding" or "Print" or "Digital" or"Packaging") {
                        echo '<h3>'.$image_title.'</h3>';
                        echo wp_get_attachment_image( $attachment_id, '' );
                        echo '<a href="'.$img_url.'">'.'<div class="hover">'.$description.'</div>'.'</a>';

                    var_dump($image_title);

                    }

                    else if ($image_title == "Twitter") {
                        echo '<h3>'.$image_title.'</h3>';
                        echo wp_get_attachment_image( $attachment_id, '' );
                        echo '<div class="twitterfeed"><h2>@V_IX</h2><ul id="twitter_update_list"><li>Twitter feed loading</li></ul></div>';
                    }                   

                    else if ($image_title == "Facebook") {
                        echo '<h3>'.$image_title.'</h3>';
                        echo wp_get_attachment_image( $attachment_id, '' );
                        echo '<div class="facebookfeed">';
                        include 'facebook.php';
                        echo '</div>';
                    }

                    else {

                        if ( !empty($img_url) /*img_url exists*/ ){

                            echo '<h3>'.$image_title.'</h3>';

                            if ( !empty($description) /*description exists*/ ){
                                echo wp_get_attachment_image( $attachment_id, '' );
                                echo '<a href="'.$img_url.'">'.'<div class="hover">'.$description.'</div>'.'</a>';
                            }

                            else {
                                echo '<a href="'.$img_url.'">';
                                echo wp_get_attachment_image( $attachment_id, '' );
                                echo '</a>';

                            }
                        }   

                        else  { /*img_url doesnt exist*/

                            echo '<h3>'.$image_title.'</h3>';

                            if ( !empty($description) /*description exists*/ ){
                                echo wp_get_attachment_image( $attachment_id, '' );
                                echo '<div class="hover">'.$description.'</div>';
                            }

                            else {
                                echo wp_get_attachment_image( $attachment_id, '' );
                            }
                        }

                    }

                echo '</div>';


        }

        else {
                    echo '<div class="imagewrap">';

                    if ($image_title == "Branding" || "Print" || "Digital" || "Packaging") {
                        echo '<h3>'.$image_title.'</h3>';
                        echo wp_get_attachment_image( $attachment_id, '' );
                        echo '<a href="'.$img_url.'">'.'<div class="hover">'.$description.'</div>'.'</a>';
                    }

                    else if ($image_title == "Twitter" ) {
                        echo '<h3>'.$image_title.'</h3>';
                        echo wp_get_attachment_image( $attachment_id, '' );
                        echo '<div class="twitterfeed"><h2>@V_IX</h2><ul id="twitter_update_list"><li>Twitter feed loading</li></ul></div>';
                    }                   

                    else if ($image_title == "Facebook") {
                        echo '<h3>'.$image_title.'</h3>';
                        echo wp_get_attachment_image( $attachment_id, '' );
                        echo '<div class="facebookfeed">';
                        include 'facebook.php';
                        echo '</div>';
                    }

                    else {

                        if ( !empty($img_url) /*img_url exists*/ ){

                            echo '<h3>'.$image_title.'</h3>';

                            if ( !empty($description) /*description exists*/ ){
                                echo wp_get_attachment_image( $attachment_id, '' );
                                echo '<a href="'.$img_url.'">'.'<div class="hover">'.$description.'</div>'.'</a>';
                            }

                            else {
                                echo '<a href="'.$img_url.'">';
                                echo wp_get_attachment_image( $attachment_id, '' );
                                echo '</a>';

                            }
                        }   

                        else  { /*img_url doesnt exist*/

                            echo '<h3>'.$image_title.'</h3>';

                            if ( !empty($description) /*description exists*/ ){
                                echo wp_get_attachment_image( $attachment_id, '' );
                                echo '<div class="hover">'.$description.'</div>';
                            }

                            else {
                                echo wp_get_attachment_image( $attachment_id, '' );
                            }
                        }

                    }

                echo '</div>';

        }
    }

将if语句更改为（我认为是什么？）更正 - if (($image_title == "Branding")||($image_title == "Print")||($image_title == "Digital")||($image_title =="Packaging")) { - 似乎没有显示带有'branding'等字符串的变量。

Answer 1

if ($image_title == "Branding" or "Print" or "Digital" or "Packaging")

必须是：

if ($image_title == 'Branding' || $image_title == 'Print' || $image_title == 'Digital' || $image_title == 'Packaging')