通过编辑Avada子主题logo.php在WordPress网站上切换特定页面的logo _logo

我正在尝试使特定页面在页眉中使用不同的徽标。我从Avada主题复制了logo.php文件到我的子主题文件夹(Avada-Child-Theme / templates / logo.php)。
我补充说：

if (is_page(array (194, 248))) { $standard_logo = 'http://nac.flywheelsites.com/wp-content/uploads/2018/05/broadway-binghamton-logo.png'; }if (is_page(array (194, 248))) { $retina_logo = 'http://nac.flywheelsites.com/wp-content/uploads/2018/05/broadway-binghamton-logo.png'; }

这是完整的新logo.php文件：

< ?php /** * Logo template. * * @authorThemeFusion * @copyright(c) Copyright by ThemeFusion * @linkhttp://theme-fusion.com * @packageAvada * @subpackage Core */// Do not allow directly accessing this file. if ( ! defined( 'ABSPATH' ) ) { exit( 'Direct script access denied.' ); } $logo_opening_markup = '< div class="'; $logo_closing_markup = '< /div> '; if ( 'v7' === Avada()-> settings-> get( 'header_layout' ) & & ! Avada()-> settings-> get( 'logo_background' ) ) { $logo_opening_markup = '< li class="fusion-middle-logo-menu-logo '; $logo_closing_markup = '< /li> '; } elseif ( 'v7' === Avada()-> settings-> get( 'header_layout' ) & & Avada()-> settings-> get( 'logo_background' ) & & 'Top' === Avada()-> settings-> get( 'header_position' ) ) { $logo_opening_markup = '< li class="fusion-logo-background fusion-middle-logo-menu-logo"> < div class="'; $logo_closing_markup = '< /div> < /li> '; } elseif ( Avada()-> settings-> get( 'logo_background' ) & & 'v4' !== Avada()-> settings-> get( 'header_layout' ) & & 'v5' !== Avada()-> settings-> get( 'header_layout' ) & & 'Top' === Avada()-> settings-> get( 'header_position' ) ) { $logo_opening_markup = '< div class="fusion-logo-background"> < div class="'; $logo_closing_markup = '< /div> < /div> '; } ?> < ?php if ( '' !== Avada()-> settings-> get( 'logo', 'url' ) || '' !== Avada()-> settings-> get( 'logo_retina', 'url' ) ) : ?> < ?php echo $logo_opening_markup; // WPCS: XSS ok. ?> fusion-logo" data-margin-top="< ?php echo esc_attr( Avada()-> settings-> get( 'logo_margin', 'top' ) ); ?> " data-margin-bottom="< ?php echo esc_attr( Avada()-> settings-> get( 'logo_margin', 'bottom' ) ); ?> " data-margin-left="< ?php echo esc_attr( Avada()-> settings-> get( 'logo_margin', 'left' ) ); ?> " data-margin-right="< ?php echo esc_attr( Avada()-> settings-> get( 'logo_margin', 'right' ) ); ?> "> < ?php else : ?> < ?php echo $logo_opening_markup; // WPCS: XSS ok. ?> fusion-logo" data-margin-top="0px" data-margin-bottom="0px" data-margin-left="0px" data-margin-right="0px"> < ?php endif; ?> < ?php /** * The avada_logo_prepend hook. */ do_action( 'avada_logo_prepend' ); $logo_anchor_tag_attributes = ''; $logo_anchor_tag_attributes_array = apply_filters( 'avada_logo_anchor_tag_attributes', array( 'class' => 'fusion-logo-link', 'href'=> ( $custom_link = Avada()-> settings-> get( 'logo_custom_link' ) ) ? esc_url( $custom_link ) : esc_url( home_url( '/' ) ), ) ); foreach ( $logo_anchor_tag_attributes_array as $attribute => $value ) { if ( 'href' === $attribute ) { $value = http://www.srcmini.com/esc_url( $value ); } else { $value = esc_attr( $value ); }$logo_anchor_tag_attributes .=' ' . $attribute . '="' . $value . '" '; }if (is_page(array (194, 248))) { $standard_logo = 'http://nac.flywheelsites.com/wp-content/uploads/2018/05/broadway-binghamton-logo.png'; }if (is_page(array (194, 248))) { $retina_logo = 'http://nac.flywheelsites.com/wp-content/uploads/2018/05/broadway-binghamton-logo.png'; }$logo_alt_attribute = apply_filters( 'avada_logo_alt_tag', get_bloginfo( 'name', 'display' ) . ' ' . __( 'Logo', 'Avada' ) ); ?> < ?php if ( ( Avada()-> settings-> get( 'logo', 'url' ) & & '' !== Avada()-> settings-> get( 'logo', 'url' ) ) || ( Avada()-> settings-> get( 'logo_retina', 'url' ) & & '' !== Avada()-> settings-> get( 'logo_retina', 'url' ) ) ) : ?> < a< ?php echo $logo_anchor_tag_attributes; // WPCS: XSS ok. ?> > < ?php $standard_logo = Avada()-> images-> get_logo_image_srcset( 'logo', 'logo_retina' ); ?> < !-- standard logo --> < img src="http://www.srcmini.com/< ?php echo esc_url_raw( $standard_logo['url'] ); ?> " srcset="< ?php echo esc_attr( $standard_logo['srcset'] ); ?> " width="< ?php echo esc_attr( $standard_logo['width'] ); ?> " height="< ?php echo esc_attr( $standard_logo['height'] ); ?> "< ?php echo $standard_logo['style']; // WPCS: XSS ok. ?> alt="< ?php echo esc_attr( $logo_alt_attribute ); ?> " retina_logo_url="< ?php echo esc_url_raw( $standard_logo['is_retina'] ); ?> " class="fusion-standard-logo" /> < ?php if ( Avada()-> settings-> get( 'mobile_logo', 'url' ) & & '' !== Avada()-> settings-> get( 'mobile_logo', 'url' ) ) { $mobile_logo = Avada()-> images-> get_logo_image_srcset( 'mobile_logo', 'mobile_logo_retina' ); ?> < !-- mobile logo --> < img src="http://www.srcmini.com/< ?php echo esc_url_raw( $mobile_logo['url'] ); ?> " srcset="< ?php echo esc_attr( $mobile_logo['srcset'] ); ?> " width="< ?php echo esc_attr( $mobile_logo['width'] ); ?> " height="< ?php echo esc_attr( $mobile_logo['height'] ); ?> "< ?php echo $mobile_logo['style']; // WPCS: XSS ok. ?> alt="< ?php echo esc_attr( $logo_alt_attribute ); ?> " retina_logo_url="< ?php echo esc_url_raw( $mobile_logo['is_retina'] ); ?> " class="fusion-mobile-logo" /> < ?php } ?> < ?php if ( Avada()-> settings-> get( 'sticky_header_logo', 'url' ) & & '' !== Avada()-> settings-> get( 'sticky_header_logo', 'url' ) & & ( in_array( Avada()-> settings-> get( 'header_layout' ), array( 'v1', 'v2', 'v3', 'v6', 'v7' ) ) || ( ( in_array( Avada()-> settings-> get( 'header_layout' ), array( 'v4', 'v5' ) ) & & 'menu_and_logo' === Avada()-> settings-> get( 'header_sticky_type2_layout' ) ) ) ) ) { $sticky_logo = Avada()-> images-> get_logo_image_srcset( 'sticky_header_logo', 'sticky_header_logo_retina' ); ?> < !-- sticky header logo --> < img src="http://www.srcmini.com/< ?php echo esc_url_raw( $sticky_logo['url'] ); ?> " srcset="< ?php echo esc_attr( $sticky_logo['srcset'] ); ?> " width="< ?php echo esc_attr( $sticky_logo['width'] ); ?> " height="< ?php echo esc_attr( $sticky_logo['height'] ); ?> "< ?php echo $sticky_logo['style']; // WPCS: XSS ok. ?> alt="< ?php echo esc_attr( $logo_alt_attribute ); ?> " retina_logo_url="< ?php echo esc_url_raw( $sticky_logo['is_retina'] ); ?> " class="fusion-sticky-logo" /> < ?php } ?> < /a> < ?php endif; ?> < ?php /** * The avada_logo_append hook. * * @hooked avada_header_content_3 - 10. */ do_action( 'avada_logo_append' ); ?> < ?php echo $logo_closing_markup; // WPCS: XSS ok./* Omit closing PHP tag to avoid "Headers already sent" issues. */

我试过了：

$standard_logo[‘url’] = ‘/wp-content/uploads/2018/05/broadway-binghamton-logo.png’;

也一样当前文件仅适用于指定的页面, 但是我在这些页面的顶部看到此错误：
警告：第73行的/www/wp-content/themes/Avada-Child-Theme/templates/logo.php中的字符串偏移量’ url’ 不合法
我不知道如何使它工作。网站是http://nac.flywheelsites.com/, 要查看, 联合国：flywheel PW：ideakraft
在主导航栏中的” 城市” 下, 我正在尝试更改宾厄姆顿的徽标。
图片网址正确。
我会将其放置在PHP文件中的错误位置吗？我尝试了几个不同的地方。请指教。非常感谢。
#1不要将其设置为字符串-你在数组的正确位置上。
我认为你必须同时设置” url” 和” srcset” ：

// fetch logo normally $standard_logo = Avada()-> images-> get_logo_image_srcset( 'logo', 'logo_retina' ); // see what that logo structure is like so you know what to override // echo "< pre> "; print_r($standard_logo); echo "< /pre> "; // if on these pages, override the srcset and url if (is_page(array (194, 248))) { $standard_logo['srcset'] = 'http://nac.flywheelsites.com/wp-content/uploads/2018/05/broadway-binghamton-logo.png'; $standard_logo['url'] = $standard_logo['srcset']; $retina_logo['srcset'] = 'http://nac.flywheelsites.com/wp-content/uploads/2018/05/broadway-binghamton-logo.png'; $retina_logo['url'] = $retinal_logo['srcset']; }

否则, 我不会立即看到任何问题。。。确保阵列中的ID是正确的。并确保在使用Avada函数正常提取徽标后放置IF条件, 否则Avada函数将覆盖新变量。
#2答案是将每种徽标类型(标准, 移动等)的自定义徽标放置在图像源esc_url_raw()函数上方。

< ?php $standard_logo = Avada()-> images-> get_logo_image_srcset( 'logo', 'logo_retina' ); ?> < !-- custom standard logos --> < ?php //Binghamton if (is_page( 194 )) { $standard_logo['srcset'] = 'http://nac.flywheelsites.com/wp-content/uploads/2018/05/broadway-binghamton-logo.png'; $standard_logo['url'] = $standard_logo['srcset']; $retina_logo['srcset'] = 'http://nac.flywheelsites.com/wp-content/uploads/2018/05/broadway-binghamton-logo-retina.png'; $retina_logo['url'] = $standard_logo['srcset']; } //Erie if (is_page( 248 )) { $standard_logo['srcset'] = 'http://nac.flywheelsites.com/wp-content/uploads/2018/05/broadway-erie-logo.png'; $standard_logo['url'] = $standard_logo['srcset']; $retina_logo['srcset'] = 'http://nac.flywheelsites.com/wp-content/uploads/2018/05/broadway-erie-logo.png'; $retina_logo['url'] = $standard_logo['srcset']; } //Scranton if (is_page( 250 )) { $standard_logo['srcset'] = 'http://nac.flywheelsites.com/wp-content/uploads/2018/05/broadway-scranton-logo.png'; $standard_logo['url'] = $standard_logo['srcset']; $retina_logo['srcset'] = 'http://nac.flywheelsites.com/wp-content/uploads/2018/05/broadway-scranton-logo.png'; $retina_logo['url'] = $standard_logo['srcset']; } ?> < !-- standard logo --> < img src="http://www.srcmini.com/< ?php echo esc_url_raw( $standard_logo['url'] ); ?> " srcset="< ?php echo esc_attr( $standard_logo['srcset'] ); ?> " width="< ?php echo esc_attr( $standard_logo['width'] ); ?> " height="< ?php echo esc_attr( $standard_logo['height'] ); ?> "< ?php echo $standard_logo['style']; // WPCS: XSS ok. ?> alt="< ?php echo esc_attr( $logo_alt_attribute ); ?> " retina_logo_url="< ?php echo esc_url_raw( $standard_logo['is_retina'] ); ?> " class="fusion-standard-logo" />

【通过编辑Avada子主题logo.php在WordPress网站上切换特定页面的logo】页面条件运行良好, 通过回显进行了测试。刚需要在打印徽标图像之前执行自定义代码。