在 Laravel 6 中，运行包含 PHP Blade 语法的文件，进而获取其输出
1、现有一段 PHP Blade 代码块，放在 MySQL 中，其代码存放在字段 schema 中，如图1
图1
2、一些变量，已经在 PHP 脚本中声明，代码块如下所示
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 | { "sections": { @foreach ($homepage as $id => $section) {{-- 轮播图 --}} @if($section['type'] === 'carousel') "{{ $id }}": { "type": "carousel", "settings": { "loop": true, "autoplay": true, "height": "{{ isset($section['slide_height']) && $section['slide_height'] === 'full' ? 'full' : 'auto' }}", "interval": {{ $section['interval'] }} }, "blocks": { @if (isset($section['items'])) @foreach ($section['items'] as $key => $item) "slide-{{ $key }}": { "type": "slide", "settings": { "image": "{{ @$item['image']['url'] ?: '' }}", "url": "{{ $item['button']['url'] }}", "align": "{{ $item['align'] }}", "title": {-- $item['title'] --}, "description": {-- $item['description'] --}, "button": {-- $item['button']['text'] --}, "opacity": {{ $item['show_overlay'] ? (100 - $item['opacity']) : 100 }}, "button_background_color": "{{ $item['button_background_color'] }}", "button_color": "{{ $item['button_text_color']}}", "color": "{{ $item['text_color'] }}" } }@if (!$loop->last),@endif @endforeach @endif } }, @endif {{-- 商品分类 --}} @if($section['type'] === 'collection') "{{ $id }}": { "type": "main-collections", "settings": { "heading": {-- $section['title'] --} }, "blocks": { @foreach ($section['ids'] as $key => $item) "collection-{{ $key }}": { "type": "collection", "settings": { "id": {{ $item }} } }@if (!$loop->last),@endif @endforeach } }, @endif {{-- 精选商品 --}} @if($section['type'] === 'product') "{{ $id }}": { "type": "main-products", "settings": { "show_product_palette": {{ @Module::find('ProductPalette')->isEnabled() && @config('product-palette.show_position') === 'all' ? 'true' : 'false' }}, "heading": {-- $section['title'] --}, "layout": "{{ $section['layout'] }}", "page_size": {{ $section['amount'] }} }, "blocks": { @foreach ($section['category'] as $key => $item) "collection-{{ $key }}": { "type": "collection", "settings": { "id": {{ $item }} } }@if (!$loop->last),@endif @endforeach } }, @endif {{-- 邮件订阅 --}} @if($section['type'] === 'subscribe') "{{ $id }}": { "type": "apps", "blocks": { "newsletter": { "type": "object/Newsletter/blocks/newsletter", "settings": { "heading": {-- $section['title'] --}, "description": {-- $section['description'] --} } } } }, @endif {{-- 图片 --}} @if($section['type'] === 'image') "{{ $id }}": { "type": "image", "settings": { "heading": {-- $section['title'] --}, "heading_align": "{{ $section['align'] }}" }, "blocks": { @if (isset($section['items'])) @foreach ($section['items'] as $key => $item) "column-{{ $key }}": { "type": "column", "settings": { "image": "{{ @$item['image']['url'] ?: '' }}", "mobile_image": "{{ @$item['mb_image']['url'] ?: '' }}", "url": "{{ $item['url'] }}", "title": "{{ @$item['url_object']['title'] ?: '' }}" } }@if (!$loop->last),@endif @endforeach @endif } }, @endif {{-- 图文 --}} @if($section['type'] === 'imagetext') {{-- 网格 --}} @if($section['layout_type'] === 'grid') "{{ $id }}": { "type": "multi-column", "settings": { "heading": {-- $section['title_text'] ?: '' --}, "heading_align": "{{ $section['title_aligns'] }}", "text_color": "{{ $section['text_color_v2'] }}", "image_size": "{{ $section['image_style'] === 'auto' ? 'auto' : 'fixed' }}", "mask_opacity": {{ $section['opacity'] }}, "button_text_color": "{{ $section['button_text_color_v2'] }}", "button_background_color": "{{ @$section['button_bg_color_v2'] ?: '' }}", "text_align": "{{ $section['align'] }}" }, "blocks": { @if (isset($section['items'])) @foreach ($section['items'] as $key => $item) "column-{{ $key }}": { "type": "column", "settings": { "heading": {-- $item['title'] ?: '' --}, "text": {-- @$item['description'] ?:'' --}, "image": "{{ @$item['image']['url'] ?: '' }}", "mobile_image": "{{ @$item['mobile_image']['url'] ?: '' }}", "url": "{{ @$item['button']['url_object']['url'] }}", "label": {-- $item['button']['text'] --} } }@if (!$loop->last),@endif @endforeach @endif } }, @else {{-- 左文右图（left） --}} {{-- 左图右文（right） --}} "{{ $id }}": { "type": "image-text", "settings": { "heading": {-- $section['title_text'] --}, "heading_align": "{{ $section['title_aligns'] }}", "image": "{{ @$section['horizontal']['image']['url'] }}", "image_placement": "{{ $section['layout_type'] === 'left' ? 'second' : 'first' }}", "horizontal_align": "{{ $section['horizontal']['level_align'] }}", "vertical_align": "{{ $section['horizontal']['vertical_align'] === 'flex-start' ? 'top' : ($section['horizontal']['vertical_align'] === 'flex-end' ? 'bottom' : 'middle') }}", "text_color": "{{ $section['text_color_v2'] }}", "background_color": "{{ @$section['text_bg_color_v2'] ?: '' }}" }, "blocks": { "heading": { "type": "heading", "settings": { "heading": {-- $section['horizontal']['title'] --} } }, "text": { "type": "text", "settings": { "text": {-- $section['horizontal']['description'] --} } }, "button": { "type": "button", "settings": { "url": "{{ @$section['horizontal']['button']['url_object']['url'] }}", "label": {-- $section['horizontal']['button']['text'] --}, "text_color": "{{ $section['button_text_color_v2'] }}", "background_color": "{{ $section['button_bg_color_v2'] }}" } } } }, @endif @endif @endforeach "0": { "type": "empty" } }} |
3、编译后的模板文件代码如下所示。
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 | { "sections": { <?php $__currentLoopData = $homepage; $__env->addLoop($__currentLoopData); foreach($__currentLoopData as $id => $section): $__env->incrementLoopIndices(); $loop = $__env->getLastLoop(); ?> <?php if($section['type'] === 'carousel'): ?> "<?php echo e($id); ?>": { "type": "carousel", "settings": { "loop": true, "autoplay": true, "height": "<?php echo e(isset($section['slide_height']) && $section['slide_height'] === 'full' ? 'full' : 'auto'); ?>", "interval": <?php echo e($section['interval']); ?> }, "blocks": { <?php if(isset($section['items'])): ?> <?php $__currentLoopData = $section['items']; $__env->addLoop($__currentLoopData); foreach($__currentLoopData as $key => $item): $__env->incrementLoopIndices(); $loop = $__env->getLastLoop(); ?> "slide-<?php echo e($key); ?>": { "type": "slide", "settings": { "image": "<?php echo e(@$item['image']['url'] ?: ''); ?>", "url": "<?php echo e($item['button']['url']); ?>", "align": "<?php echo e($item['align']); ?>", "title": <?php echo json_encode($item['title'], JSON_UNESCAPED_UNICODE); ?>, "description": <?php echo json_encode($item['description'], JSON_UNESCAPED_UNICODE); ?>, "button": <?php echo json_encode($item['button']['text'], JSON_UNESCAPED_UNICODE); ?>, "opacity": <?php echo e($item['show_overlay'] ? (100 - $item['opacity']) : 100); ?>, "button_background_color": "<?php echo e($item['button_background_color']); ?>", "button_color": "<?php echo e($item['button_text_color']); ?>", "color": "<?php echo e($item['text_color']); ?>" } }<?php if(!$loop->last): ?>,<?php endif; ?> <?php endforeach; $__env->popLoop(); $loop = $__env->getLastLoop(); ?> <?php endif; ?> } }, <?php endif; ?> <?php if($section['type'] === 'collection'): ?> "<?php echo e($id); ?>": { "type": "main-collections", "settings": { "heading": <?php echo json_encode($section['title'], JSON_UNESCAPED_UNICODE); ?> }, "blocks": { <?php $__currentLoopData = $section['ids']; $__env->addLoop($__currentLoopData); foreach($__currentLoopData as $key => $item): $__env->incrementLoopIndices(); $loop = $__env->getLastLoop(); ?> "collection-<?php echo e($key); ?>": { "type": "collection", "settings": { "id": <?php echo e($item); ?> } }<?php if(!$loop->last): ?>,<?php endif; ?> <?php endforeach; $__env->popLoop(); $loop = $__env->getLastLoop(); ?> } }, <?php endif; ?> <?php if($section['type'] === 'product'): ?> "<?php echo e($id); ?>": { "type": "main-products", "settings": { "show_product_palette": <?php echo e(@Module::find('ProductPalette')->isEnabled() && @config('product-palette.show_position') === 'all' ? 'true' : 'false'); ?>, "heading": <?php echo json_encode($section['title'], JSON_UNESCAPED_UNICODE); ?>, "layout": "<?php echo e($section['layout']); ?>", "page_size": <?php echo e($section['amount']); ?> }, "blocks": { <?php $__currentLoopData = $section['category']; $__env->addLoop($__currentLoopData); foreach($__currentLoopData as $key => $item): $__env->incrementLoopIndices(); $loop = $__env->getLastLoop(); ?> "collection-<?php echo e($key); ?>": { "type": "collection", "settings": { "id": <?php echo e($item); ?> } }<?php if(!$loop->last): ?>,<?php endif; ?> <?php endforeach; $__env->popLoop(); $loop = $__env->getLastLoop(); ?> } }, <?php endif; ?> <?php if($section['type'] === 'subscribe'): ?> "<?php echo e($id); ?>": { "type": "apps", "blocks": { "newsletter": { "type": "object/Newsletter/blocks/newsletter", "settings": { "heading": <?php echo json_encode($section['title'], JSON_UNESCAPED_UNICODE); ?>, "description": <?php echo json_encode($section['description'], JSON_UNESCAPED_UNICODE); ?> } } } }, <?php endif; ?> <?php if($section['type'] === 'image'): ?> "<?php echo e($id); ?>": { "type": "image", "settings": { "heading": <?php echo json_encode($section['title'], JSON_UNESCAPED_UNICODE); ?>, "heading_align": "<?php echo e($section['align']); ?>" }, "blocks": { <?php if(isset($section['items'])): ?> <?php $__currentLoopData = $section['items']; $__env->addLoop($__currentLoopData); foreach($__currentLoopData as $key => $item): $__env->incrementLoopIndices(); $loop = $__env->getLastLoop(); ?> "column-<?php echo e($key); ?>": { "type": "column", "settings": { "image": "<?php echo e(@$item['image']['url'] ?: ''); ?>", "mobile_image": "<?php echo e(@$item['mb_image']['url'] ?: ''); ?>", "url": "<?php echo e($item['url']); ?>", "title": "<?php echo e(@$item['url_object']['title'] ?: ''); ?>" } }<?php if(!$loop->last): ?>,<?php endif; ?> <?php endforeach; $__env->popLoop(); $loop = $__env->getLastLoop(); ?> <?php endif; ?> } }, <?php endif; ?> <?php if($section['type'] === 'imagetext'): ?> <?php if($section['layout_type'] === 'grid'): ?> "<?php echo e($id); ?>": { "type": "multi-column", "settings": { "heading": <?php echo json_encode($section['title_text'] ?: '', JSON_UNESCAPED_UNICODE); ?>, "heading_align": "<?php echo e($section['title_aligns']); ?>", "text_color": "<?php echo e($section['text_color_v2']); ?>", "image_size": "<?php echo e($section['image_style'] === 'auto' ? 'auto' : 'fixed'); ?>", "mask_opacity": <?php echo e($section['opacity']); ?>, "button_text_color": "<?php echo e($section['button_text_color_v2']); ?>", "button_background_color": "<?php echo e(@$section['button_bg_color_v2'] ?: ''); ?>", "text_align": "<?php echo e($section['align']); ?>" }, "blocks": { <?php if(isset($section['items'])): ?> <?php $__currentLoopData = $section['items']; $__env->addLoop($__currentLoopData); foreach($__currentLoopData as $key => $item): $__env->incrementLoopIndices(); $loop = $__env->getLastLoop(); ?> "column-<?php echo e($key); ?>": { "type": "column", "settings": { "heading": <?php echo json_encode($item['title'] ?: '', JSON_UNESCAPED_UNICODE); ?>, "text": <?php echo json_encode(@$item['description'] ?:'', JSON_UNESCAPED_UNICODE); ?>, "image": "<?php echo e(@$item['image']['url'] ?: ''); ?>", "mobile_image": "<?php echo e(@$item['mobile_image']['url'] ?: ''); ?>", "url": "<?php echo e(@$item['button']['url_object']['url']); ?>", "label": <?php echo json_encode($item['button']['text'], JSON_UNESCAPED_UNICODE); ?> } }<?php if(!$loop->last): ?>,<?php endif; ?> <?php endforeach; $__env->popLoop(); $loop = $__env->getLastLoop(); ?> <?php endif; ?> } }, <?php else: ?> "<?php echo e($id); ?>": { "type": "image-text", "settings": { "heading": <?php echo json_encode($section['title_text'], JSON_UNESCAPED_UNICODE); ?>, "heading_align": "<?php echo e($section['title_aligns']); ?>", "image": "<?php echo e(@$section['horizontal']['image']['url']); ?>", "image_placement": "<?php echo e($section['layout_type'] === 'left' ? 'second' : 'first'); ?>", "horizontal_align": "<?php echo e($section['horizontal']['level_align']); ?>", "vertical_align": "<?php echo e($section['horizontal']['vertical_align'] === 'flex-start' ? 'top' : ($section['horizontal']['vertical_align'] === 'flex-end' ? 'bottom' : 'middle')); ?>", "text_color": "<?php echo e($section['text_color_v2']); ?>", "background_color": "<?php echo e(@$section['text_bg_color_v2'] ?: ''); ?>" }, "blocks": { "heading": { "type": "heading", "settings": { "heading": <?php echo json_encode($section['horizontal']['title'], JSON_UNESCAPED_UNICODE); ?> } }, "text": { "type": "text", "settings": { "text": <?php echo json_encode($section['horizontal']['description'], JSON_UNESCAPED_UNICODE); ?> } }, "button": { "type": "button", "settings": { "url": "<?php echo e(@$section['horizontal']['button']['url_object']['url']); ?>", "label": <?php echo json_encode($section['horizontal']['button']['text'], JSON_UNESCAPED_UNICODE); ?>, "text_color": "<?php echo e($section['button_text_color_v2']); ?>", "background_color": "<?php echo e($section['button_bg_color_v2']); ?>" } } } }, <?php endif; ?> <?php endif; ?> <?php endforeach; $__env->popLoop(); $loop = $__env->getLastLoop(); ?> "0": { "type": "empty" } }} |
4、决定跳过将 PHP Blade 文件编译为 PHP 模板文件的这一步，而是手动调整为编译后的格式，然后去除掉其中的 Blade 语法。以下为编译后的一段 Blade 格式示例。如图2
图2
5、以下为去除掉其中的 Blade 语法后的示例。涉及到像 $__env 的变量已经全部删除。如图3
图3
6、决定先尝试编写一个简单的代码块，以验证技术方案的可行性。如果可行，再尝试执行步骤 5 所生成的代码块。
1 2 3 4 5 6 7 8 9 10 11 12 13 | { <?php $items = [1, 2, 3]; ?> <?php if(isset($items)): ?> <?php $count = count($items); foreach($items as $key => $item): $count--; ?> "slide-<?php echo $key; ?>": { "type": "slide", "settings": { "image": "<?php echo $item ?: ''; ?>" } }<?php if($count != 0): ?>,<?php endif; ?> <?php endforeach; ?> <?php endif; ?>} |
7、直接运行此代码所在的文件(phpcode.php)，其结果转换为 json 结构，符合预期。如图4
图4
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 | { "slide-0": { "type": "slide", "settings": { "image": "1" } }, "slide-1": { "type": "slide", "settings": { "image": "2" } }, "slide-2": { "type": "slide", "settings": { "image": "3" } } } |
8、现在需要新建一个 PHP 脚本，然后使用输出缓冲来将 PHP 文件包含入一个字符串。参考：https://www.php.net/manual/zh/function.include.php ，新建 PHP 文件 ob.php，运行后，输出 json 结构，符合预期。如图5
图5
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 | <?php$string = get_include_contents('phpcode.php');echo $string;function get_include_contents($filename) { if (is_file($filename)) { ob_start(); include $filename; $contents = ob_get_contents(); ob_end_clean(); return $contents; } return false;}?> |
9、不过由于前端同事认为这样调整模板为 PHP 原生语法的方案可读性差，工作量过大。仍然要求后端自动完成所有的流程，也包含 Blade 编译为 PHP 模板的流程。最终实现方案如下
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 | /*$filename = $directory . '/' . substr($themeAsset->asset_key, 6);if (Storage::disk('local')->exists($filename)) { ob_start(); include storage_path('app') . '/' . $filename; $contents = ob_get_contents(); ob_end_clean(); $themeAsset->schema = $contents; $themeAsset->save();}*/View::addLocation(storage_path('app') . '/' . $directory);$filename = substr(substr($originalThemeAsset->asset_key, 0, strpos($originalThemeAsset->asset_key, '.')), 6);$variables = $this->getBladeSchemaCompilerVariables($filename, $originalThemeInstallation->theme);$schema = View::make($filename)->with($variables)->render();$themeAsset->schema = $schema;$themeAsset->save(); |
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