From 8b99b51ec8f4046477410d8caa8b360ab45bea9f Mon Sep 17 00:00:00 2001
From: Igor Simdyanov <igorsimdyanov@gmail.com>
Date: Fri, 27 May 2022 21:28:32 +0300
Subject: [PATCH] =?UTF-8?q?=D0=93=D0=BB=D0=B0=D0=B2=D0=B0=2036:=20=D0=BF?=
 =?UTF-8?q?=D1=80=D0=BE=D1=81=D1=82=D1=80=D0=B0=D0=BD=D1=81=D1=82=D0=B2?=
 =?UTF-8?q?=D0=BE=20=D0=B8=D0=BC=D0=B5=D0=BD?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 namespace/PHP8/page.php             | 18 ++++++++++++++++
 namespace/PHP8/seo.php              | 25 ++++++++++++++++++++++
 namespace/PHP8/tag.php              | 11 ++++++++++
 namespace/absolute.php              | 16 +++++++++++++++
 namespace/anonim.php                |  8 ++++++++
 namespace/autoload.php              |  8 ++++++++
 namespace/namespace.php             | 22 ++++++++++++++++++++
 namespace/namespace_const.php       |  4 ++++
 namespace/namespace_fail.php        | 32 +++++++++++++++++++++++++++++
 namespace/namespace_key.php         | 12 +++++++++++
 namespace/namespace_use.php         |  6 ++++++
 namespace/namespaces.php            | 26 +++++++++++++++++++++++
 namespace/namespaces_alt.php        | 29 ++++++++++++++++++++++++++
 namespace/namespaces_alt_use.php    |  6 ++++++
 namespace/relative.php              |  6 ++++++
 namespace/spl_autoload_register.php |  5 +++++
 namespace/use.php                   | 10 +++++++++
 namespace/wrong.php                 |  7 +++++++
 18 files changed, 251 insertions(+)
 create mode 100644 namespace/PHP8/page.php
 create mode 100644 namespace/PHP8/seo.php
 create mode 100644 namespace/PHP8/tag.php
 create mode 100644 namespace/absolute.php
 create mode 100644 namespace/anonim.php
 create mode 100644 namespace/autoload.php
 create mode 100644 namespace/namespace.php
 create mode 100644 namespace/namespace_const.php
 create mode 100644 namespace/namespace_fail.php
 create mode 100644 namespace/namespace_key.php
 create mode 100644 namespace/namespace_use.php
 create mode 100644 namespace/namespaces.php
 create mode 100644 namespace/namespaces_alt.php
 create mode 100644 namespace/namespaces_alt_use.php
 create mode 100644 namespace/relative.php
 create mode 100644 namespace/spl_autoload_register.php
 create mode 100644 namespace/use.php
 create mode 100644 namespace/wrong.php

diff --git a/namespace/PHP8/page.php b/namespace/PHP8/page.php
new file mode 100644
index 0000000..a7113c5
--- /dev/null
+++ b/namespace/PHP8/page.php
@@ -0,0 +1,18 @@
+<?php
+namespace PHP8;
+use \PHP8\Seo as Seo;
+use \PHP8\Tag as Tag;
+
+class Page
+{
+    use Seo, Tag;
+
+    protected $title;
+    protected $content;
+
+    public function __construct(string $title = '', string $content = '')
+    {
+        $this->title = $title;
+        $this->content = $content;
+    }
+}
diff --git a/namespace/PHP8/seo.php b/namespace/PHP8/seo.php
new file mode 100644
index 0000000..a2ac6c5
--- /dev/null
+++ b/namespace/PHP8/seo.php
@@ -0,0 +1,25 @@
+<?php
+namespace PHP8;
+
+trait Seo
+{
+    private $keyword;
+    private $description;
+    private $ogs;
+
+    public function keywords()
+    {
+        // $query = 'SELECT keywords FROM seo WHERE id = :id LIMIT 1'
+        echo 'Seo::keywords<br />';
+    }
+    public function description()
+    {
+        // $query = 'SELECT description FROM seo WHERE id = :id LIMIT 1'
+        echo 'Seo::description<br />';
+    }
+    public function ogs()
+    {
+        // $query = 'SELECT ogs FROM seo WHERE id = :id LIMIT 1'
+        echo 'Seo::ogs<br />';
+    }
+}
diff --git a/namespace/PHP8/tag.php b/namespace/PHP8/tag.php
new file mode 100644
index 0000000..faedb00
--- /dev/null
+++ b/namespace/PHP8/tag.php
@@ -0,0 +1,11 @@
+<?php
+namespace PHP8;
+
+trait Tag
+{
+    public function tags()
+    {
+        // $query = 'SELECT * FROM authors WHERE id IN(:ids)'
+        echo 'Tag::tags<br />';
+    }
+}
diff --git a/namespace/absolute.php b/namespace/absolute.php
new file mode 100644
index 0000000..37f195c
--- /dev/null
+++ b/namespace/absolute.php
@@ -0,0 +1,16 @@
+<?php
+namespace PHP8;
+
+function strlen($str)
+{
+    return count(str_split($str));
+}
+// Или даже так
+// function strlen($str) {
+//     return \strlen($str);
+// }
+
+// Это PHP8\strlen
+echo strlen('Hello world!').'<br />';
+// Это стандартная функция strlen()
+echo \strlen('Hello world!').'<br />';
diff --git a/namespace/anonim.php b/namespace/anonim.php
new file mode 100644
index 0000000..2391616
--- /dev/null
+++ b/namespace/anonim.php
@@ -0,0 +1,8 @@
+<?php
+spl_autoload_register(function($classname){
+    $path = strtolower($classname);
+    require_once(__DIR__ . "/$path.php");
+});
+
+$page = new PHP8\Page('О нас', 'Содержимое страницы');
+$page->tags();
diff --git a/namespace/autoload.php b/namespace/autoload.php
new file mode 100644
index 0000000..e148cbe
--- /dev/null
+++ b/namespace/autoload.php
@@ -0,0 +1,8 @@
+<?php
+function __autoload($classname)
+{
+    require_once(__DIR__ . "/$classname.php");
+}
+
+$page = new PHP8\Page('О нас', 'Содержимое страницы');
+$page->tags();
diff --git a/namespace/namespace.php b/namespace/namespace.php
new file mode 100644
index 0000000..a392f74
--- /dev/null
+++ b/namespace/namespace.php
@@ -0,0 +1,22 @@
+<?php
+namespace PHP8;
+
+const VERSION = '1.0';
+
+function debug(array|object $obj) : void
+{
+    echo '<pre>';
+    print_r($obj);
+    echo '</pre>';
+}
+
+class Page
+{
+    protected $title;
+    protected $content;
+    public function __construct(string $title = '', string $content = '')
+    {
+        $this->title = $title;
+        $this->content = $content;
+    }
+}
diff --git a/namespace/namespace_const.php b/namespace/namespace_const.php
new file mode 100644
index 0000000..6be6417
--- /dev/null
+++ b/namespace/namespace_const.php
@@ -0,0 +1,4 @@
+<?php
+namespace PHP8;
+
+echo __NAMESPACE__; // PHP8
diff --git a/namespace/namespace_fail.php b/namespace/namespace_fail.php
new file mode 100644
index 0000000..c35ec12
--- /dev/null
+++ b/namespace/namespace_fail.php
@@ -0,0 +1,32 @@
+<!DOCTYPE html>
+<html lang="ru">
+<head>
+  <title>Пространство имен</title>
+  <meta charset='utf-8' />
+</head>
+<body>
+<?php
+namespace PHP8;
+
+const VERSION = '1.0';
+
+function debug(array|object $obj) : void
+{
+    echo '<pre>';
+    print_r($obj);
+    echo '</pre>';
+}
+
+class Page
+{
+    protected $title;
+    protected $content;
+    public function __construct(string $title = '', string $content = '')
+    {
+        $this->title = $title;
+        $this->content = $content;
+    }
+}
+?>
+</body>
+</html>
diff --git a/namespace/namespace_key.php b/namespace/namespace_key.php
new file mode 100644
index 0000000..39fbea2
--- /dev/null
+++ b/namespace/namespace_key.php
@@ -0,0 +1,12 @@
+<?php
+namespace PHP8;
+
+function strlen($str)
+{
+    return count(str_split($str));
+}
+
+// Это PHP8\strlen
+echo \PHP8\strlen('Hello, world!') . '<br />';
+echo strlen('Hello, world!') . '<br />';
+echo namespace\strlen('Hello, world!') . '<br />';
diff --git a/namespace/namespace_use.php b/namespace/namespace_use.php
new file mode 100644
index 0000000..f17e3c4
--- /dev/null
+++ b/namespace/namespace_use.php
@@ -0,0 +1,6 @@
+<?php
+require_once 'namespace.php';
+
+echo 'Версия ' . PHP8\VERSION . '<br />';
+$page = new PHP8\Page('Контакты', 'Содержимое страницы');
+PHP8\debug($page);
diff --git a/namespace/namespaces.php b/namespace/namespaces.php
new file mode 100644
index 0000000..ad73cc3
--- /dev/null
+++ b/namespace/namespaces.php
@@ -0,0 +1,26 @@
+<?php
+namespace PHP8\constants;
+
+const VERSION = '1.0';
+
+namespace PHP8\functions;
+
+function debug(array|object $obj) : void
+{
+    echo '<pre>';
+    print_r($obj);
+    echo '</pre>';
+}
+
+namespace PHP8\classes;
+
+class Page
+{
+    protected $title;
+    protected $content;
+    public function __construct(string $title = '', string $content = '')
+    {
+        $this->title = $title;
+        $this->content = $content;
+    }
+}
diff --git a/namespace/namespaces_alt.php b/namespace/namespaces_alt.php
new file mode 100644
index 0000000..3985e2b
--- /dev/null
+++ b/namespace/namespaces_alt.php
@@ -0,0 +1,29 @@
+<?php
+namespace PHP8\constants
+{
+    const VERSION = '1.0';
+}
+
+namespace PHP8\functions
+{
+    function debug(array|object $obj) : void
+    {
+        echo '<pre>';
+        print_r($obj);
+        echo '</pre>';
+    }
+}
+
+namespace PHP8\classes
+{
+    class Page
+    {
+        protected $title;
+        protected $content;
+        public function __construct(string $title = '', string $content = '')
+        {
+            $this->title = $title;
+            $this->content = $content;
+        }
+    }
+}
diff --git a/namespace/namespaces_alt_use.php b/namespace/namespaces_alt_use.php
new file mode 100644
index 0000000..78e3a30
--- /dev/null
+++ b/namespace/namespaces_alt_use.php
@@ -0,0 +1,6 @@
+<?php
+require_once 'namespaces_alt.php';
+
+echo 'Версия ' . PHP8\constants\VERSION . '<br />';
+$page = new PHP8\classes\Page('Контакты', 'Содержимое страницы');
+PHP8\functions\debug($page);
diff --git a/namespace/relative.php b/namespace/relative.php
new file mode 100644
index 0000000..9f67370
--- /dev/null
+++ b/namespace/relative.php
@@ -0,0 +1,6 @@
+<?php
+namespace PHP8;
+
+require_once 'namespaces.php';
+$page = new classes\Page('Контакты', 'Содержимое страницы');
+functions\debug($page);
diff --git a/namespace/spl_autoload_register.php b/namespace/spl_autoload_register.php
new file mode 100644
index 0000000..07c0ff1
--- /dev/null
+++ b/namespace/spl_autoload_register.php
@@ -0,0 +1,5 @@
+<?php
+spl_autoload_register();
+
+$page = new PHP8\Page('О нас', 'Содержимое страницы');
+$page->tags(); // Tag::tags
diff --git a/namespace/use.php b/namespace/use.php
new file mode 100644
index 0000000..fa54afa
--- /dev/null
+++ b/namespace/use.php
@@ -0,0 +1,10 @@
+<?php
+require_once 'namespaces_alt.php';
+
+use PHP8\constants as constants;
+use PHP8\functions as functions;
+use PHP8\classes\Page as Page;
+
+echo 'Версия ' . constants\VERSION . '<br />';
+$page = new Page('Контакты', 'Содержимое страницы');
+functions\debug($page);
diff --git a/namespace/wrong.php b/namespace/wrong.php
new file mode 100644
index 0000000..6c23474
--- /dev/null
+++ b/namespace/wrong.php
@@ -0,0 +1,7 @@
+<?php
+require_once(__DIR__ . '/PHP8/seo.php');
+require_once(__DIR__ . '/PHP8/tag.php');
+require_once(__DIR__ . '/PHP8/page.php');
+
+$page = new PHP8\Page('О нас', 'Содержимое страницы');
+$page->tags(); // Tag::tags