test_2

getLastNews.php

@@ -0,0 +1,12 @@
+<?php
+$xml_file_link = "https://lenta.ru/rss";
+
+$xml_file = simplexml_load_file($xml_file_link) or die ("Error: Cannot get the xml file");
+for ($i = 0; $i < 5; $i++) {
+    $item = $xml_file->channel->item[$i];
+
+    echo $item->title . "<br />";
+    echo $item->link . "<br />";
+    echo $item->description . "<br /><br />";
+}
+?>

index.php

@@ -0,0 +1,127 @@
+<?php
+
+class InfoBlocks {
+    public $food = array (
+        array (
+            'product_name' => "Apple",
+            'in_stock' => 22,
+            'sold' => 17
+        ),
+        array (
+            'product_name' => "Strawberry",
+            'in_stock' => 15,
+            'sold' => 13
+        ),
+        array (
+            'product_name' => "Banana",
+            'in_stock' => 130,
+            'sold' => 35
+        ),
+        array (
+            'product_name' => "Kiwi",
+            'in_stock' => 150,
+            'sold' => 17
+        ),
+        array (
+            'product_name' => "Bomb",
+            'in_stock' => 1600,
+            'sold' => 17
+        ),
+    );
+
+    public function test_method ($cached_cell, $sort_type, $filter_by_keyword, $field_1_optional, $field_2_optional) {
+        // caching
+        apc_store($cached_cell, $this->food);
+        $cached_cell = apc_fetch($cached_cell);
+        // END caching
+
+        // sorting
+        switch ($sort_type) {
+            case "a": // sorting by index
+                asort($cached_cell);
+                break;
+            case "ar": // reverse sorting by index
+                arsort($cached_cell);
+                break;
+            case "k": // sorting by key
+                ksort($cached_cell);
+                break;
+            case "kr": // reverse sorting by key
+                krsort($cached_cell);
+                break;
+            default:
+                ;
+        }
+        // END sorting
+
+        // filtering
+        if ($filter_by_keyword) {
+            $m_cell = array();
+            $key = $filter_by_keyword;
+
+            $m_cell_after_one_key = array_filter(
+                $cached_cell,
+                function ($var) use ($key) {
+                    foreach ($var as $value) {
+                        if ($value == $key) {
+                            return $value;
+                        }
+                    }
+                }
+            );
+
+            $m_cell = array_merge($m_cell, $m_cell_after_one_key);
+
+            $cached_cell = $m_cell;
+        }
+        // END filtering
+
+        // fields
+        if ($field_1_optional || $field_2_optional) {
+            $cached_cell = array_column($cached_cell, $field_1_optional, $field_2_optional);
+        } else {
+            $this->render_table_from_cached_array($cached_cell);
+        }
+        // END fields
+
+        return $cached_cell;
+    }
+
+    public function render_table_from_cached_array ($cached_cell) {
+        echo '
+            <style>
+                table {
+                    width: 300px;
+                }
+
+                th {
+                    text-align: left;
+                }
+            </style>
+            <table>
+                <tr>
+                    <th>Product name</th>
+                    <th>In stock</th>
+                    <th>Sold</th>
+                </tr>' . $this->render_rows_from_array($cached_cell) . '
+            </table>
+        ';
+    }
+
+    public function render_rows_from_array ($cached_cell) {
+        $code_block = "";
+        foreach ($cached_cell as $row) {
+            $code_block .= "\n\t\t\t\t<tr>";
+            foreach ($row as $cell) {
+                $code_block .= "\n\t\t\t\t\t<td>" . $cell . "</td>";
+            }
+            $code_block .= "\n\t\t\t\t</tr>";
+        }
+        return $code_block;
+    }
+}
+
+// RENDER PAGE
+$page = new InfoBlocks();
+$page->test_method("food", "kr", "17", "", "");
+// END RENDER PAGE