From 3cd701ff39e73e59863594bcc7fc65a32250b189 Mon Sep 17 00:00:00 2001
From: Igor Simdyanov <igorsimdyanov@gmail.com>
Date: Mon, 18 Apr 2022 08:53:24 +0300
Subject: [PATCH] =?UTF-8?q?=D0=93=D0=BB=D0=B0=D0=B2=D0=B0=2011:=20=D1=87?=
 =?UTF-8?q?=D0=B5=D1=80=D0=BD=D0=BE=D0=B2=D0=B8=D0=BA?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 arrays/array.php             |  5 +++++
 arrays/array_cast.php        |  6 ++++++
 arrays/array_eq.php          | 23 +++++++++++++++++++++++
 arrays/array_eqvl.php        | 15 +++++++++++++++
 arrays/array_key_exists.php  |  5 +++++
 arrays/array_merge.php       |  7 +++++++
 arrays/array_multi.php       |  9 +++++++++
 arrays/array_search.php      |  5 +++++
 arrays/array_unset.php       | 10 ++++++++++
 arrays/assoc.php             |  5 +++++
 arrays/assoc_add.php         |  6 ++++++
 arrays/assoc_get.php         |  5 +++++
 arrays/assoc_same_keys.php   |  5 +++++
 arrays/brackets.php          |  5 +++++
 arrays/curly_brackets.php    |  4 ++++
 arrays/for.php               |  5 +++++
 arrays/foreach.php           |  9 +++++++++
 arrays/foreach_alter.php     |  9 +++++++++
 arrays/foreach_multi.php     | 14 ++++++++++++++
 arrays/index.php             |  5 +++++
 arrays/index_auto.php        |  7 +++++++
 arrays/indexes.php           |  5 +++++
 arrays/indexes_default.php   |  5 +++++
 arrays/interpolate.php       |  4 ++++
 arrays/interpolate_assoc.php |  4 ++++
 arrays/interpolate_multi.php |  6 ++++++
 arrays/is_array.php          | 14 ++++++++++++++
 arrays/isset.php             | 10 ++++++++++
 arrays/keys_types_ignore.php | 15 +++++++++++++++
 arrays/list.php              |  6 ++++++
 arrays/list_assoc.php        |  6 ++++++
 arrays/list_incomplete.php   |  4 ++++
 arrays/plus.php              |  7 +++++++
 arrays/plus_alter.php        |  7 +++++++
 arrays/print_r.php           |  5 +++++
 arrays/search_element.php    |  7 +++++++
 arrays/square.php            |  7 +++++++
 arrays/strict.php            |  7 +++++++
 arrays/unset.php             | 10 ++++++++++
 arrays/vars_exchange.php     | 13 +++++++++++++
 40 files changed, 306 insertions(+)
 create mode 100644 arrays/array.php
 create mode 100644 arrays/array_cast.php
 create mode 100644 arrays/array_eq.php
 create mode 100644 arrays/array_eqvl.php
 create mode 100644 arrays/array_key_exists.php
 create mode 100644 arrays/array_merge.php
 create mode 100644 arrays/array_multi.php
 create mode 100644 arrays/array_search.php
 create mode 100644 arrays/array_unset.php
 create mode 100644 arrays/assoc.php
 create mode 100644 arrays/assoc_add.php
 create mode 100644 arrays/assoc_get.php
 create mode 100644 arrays/assoc_same_keys.php
 create mode 100644 arrays/brackets.php
 create mode 100644 arrays/curly_brackets.php
 create mode 100644 arrays/for.php
 create mode 100644 arrays/foreach.php
 create mode 100644 arrays/foreach_alter.php
 create mode 100644 arrays/foreach_multi.php
 create mode 100644 arrays/index.php
 create mode 100644 arrays/index_auto.php
 create mode 100644 arrays/indexes.php
 create mode 100644 arrays/indexes_default.php
 create mode 100644 arrays/interpolate.php
 create mode 100644 arrays/interpolate_assoc.php
 create mode 100644 arrays/interpolate_multi.php
 create mode 100644 arrays/is_array.php
 create mode 100644 arrays/isset.php
 create mode 100644 arrays/keys_types_ignore.php
 create mode 100644 arrays/list.php
 create mode 100644 arrays/list_assoc.php
 create mode 100644 arrays/list_incomplete.php
 create mode 100644 arrays/plus.php
 create mode 100644 arrays/plus_alter.php
 create mode 100644 arrays/print_r.php
 create mode 100644 arrays/search_element.php
 create mode 100644 arrays/square.php
 create mode 100644 arrays/strict.php
 create mode 100644 arrays/unset.php
 create mode 100644 arrays/vars_exchange.php

diff --git a/arrays/array.php b/arrays/array.php
new file mode 100644
index 0000000..1a59769
--- /dev/null
+++ b/arrays/array.php
@@ -0,0 +1,5 @@
+<?php
+$arr = array('Hello, ', 'world', '!');
+echo $arr[0]; // Hello,
+echo $arr[1]; // world
+echo $arr[2]; // !
diff --git a/arrays/array_cast.php b/arrays/array_cast.php
new file mode 100644
index 0000000..fe3e6a3
--- /dev/null
+++ b/arrays/array_cast.php
@@ -0,0 +1,6 @@
+<?php
+$var = 'Hello, world';
+$arr = (array) $var;
+echo '<pre>';
+print_r($arr);
+echo '</pre>';
diff --git a/arrays/array_eq.php b/arrays/array_eq.php
new file mode 100644
index 0000000..551ded0
--- /dev/null
+++ b/arrays/array_eq.php
@@ -0,0 +1,23 @@
+<?php
+$ar1 = [1, 2, 3, 4, 5];
+$ar2 = [1, 2, 3, 4, 5];
+$ar3 = [1, 2, 3, 4];
+$ar4 = [1, 2, 6, 4, 5];
+
+if ($ar1 == $ar2) {
+    echo 'Массивы равны<br />';
+} else {
+    echo 'Массивы не равны<br />';
+}
+
+if ($ar1 == $ar3) {
+    echo 'Массивы равны<br />';
+} else {
+    echo 'Массивы не равны<br />';
+}
+
+if ($ar1 == $ar4) {
+    echo 'Массивы равны<br />';
+} else {
+    echo 'Массивы не равны<br />';
+}
diff --git a/arrays/array_eqvl.php b/arrays/array_eqvl.php
new file mode 100644
index 0000000..0c7eb5f
--- /dev/null
+++ b/arrays/array_eqvl.php
@@ -0,0 +1,15 @@
+<?php
+$fst = [1 => 1, 2 => 2];
+$snd = [1 => 1, 2 => '2'];
+
+if ($fst == $snd) {
+    echo 'Массивы равны<br />';
+} else {
+    echo 'Массивы не равны<br />';
+}
+
+if ($fst === $snd) {
+    echo 'Массивы эквивалентны<br />';
+} else {
+    echo 'Массивы не эквивалентны<br />';
+}
diff --git a/arrays/array_key_exists.php b/arrays/array_key_exists.php
new file mode 100644
index 0000000..c56de23
--- /dev/null
+++ b/arrays/array_key_exists.php
@@ -0,0 +1,5 @@
+<?php
+$arr = ['first_numb' => 1, 'second_numb' => 2];
+if (array_key_exists('first_numb', $arr)) {
+    echo 'ОК';
+}
diff --git a/arrays/array_merge.php b/arrays/array_merge.php
new file mode 100644
index 0000000..80c1842
--- /dev/null
+++ b/arrays/array_merge.php
@@ -0,0 +1,7 @@
+<?php
+$fst = ['one', 'two'];
+$snd = ['three', 'four', 'five'];
+$sum = array_merge($fst, $snd);
+echo '<pre>';
+print_r($sum);
+echo '</pre>';
diff --git a/arrays/array_multi.php b/arrays/array_multi.php
new file mode 100644
index 0000000..2228699
--- /dev/null
+++ b/arrays/array_multi.php
@@ -0,0 +1,9 @@
+<?php
+$ships = [
+    'Пассажирские корабли' => ['Лайнер', 'Яхта', 'Паром'],
+    'Военные корабли' => ['Авианосец', 'Линкор', 'Эсминец'],
+    'Грузовые корабли' => ['Сормовский', 'Волго-Дон', 'Окский']
+];
+echo '<pre>';
+print_r($ships);
+echo '</pre>';
diff --git a/arrays/array_search.php b/arrays/array_search.php
new file mode 100644
index 0000000..4e709fa
--- /dev/null
+++ b/arrays/array_search.php
@@ -0,0 +1,5 @@
+<?php
+$array = [0 => 'blue', 1 => 'red', 2 => 'green', 3 => 'red'];
+
+$key = array_search('green', $array); // $key = 2;
+$key = array_search('red', $array);   // $key = 1;
diff --git a/arrays/array_unset.php b/arrays/array_unset.php
new file mode 100644
index 0000000..8af96da
--- /dev/null
+++ b/arrays/array_unset.php
@@ -0,0 +1,10 @@
+<?php
+$arr = [1, 2, 3, 4, 5];
+
+// Удаляем третий элемент массива
+unset($arr);
+
+// Выводим дамп массива
+echo '<pre>';
+print_r($arr); // PHP Warning:  Undefined variable $arr
+echo '</pre>';
diff --git a/arrays/assoc.php b/arrays/assoc.php
new file mode 100644
index 0000000..fc8f72e
--- /dev/null
+++ b/arrays/assoc.php
@@ -0,0 +1,5 @@
+<?php
+$arr = ['one' => '1', 'two' => '2'];
+echo '<pre>';
+print_r($arr);
+echo '</pre>';
diff --git a/arrays/assoc_add.php b/arrays/assoc_add.php
new file mode 100644
index 0000000..91c2488
--- /dev/null
+++ b/arrays/assoc_add.php
@@ -0,0 +1,6 @@
+<?php
+$arr['one'] = '1';
+$arr['two'] = '2';
+echo '<pre>';
+print_r($arr);
+echo '</pre>';
diff --git a/arrays/assoc_get.php b/arrays/assoc_get.php
new file mode 100644
index 0000000..ddb6bbb
--- /dev/null
+++ b/arrays/assoc_get.php
@@ -0,0 +1,5 @@
+<?php
+$arr = ['one' => '1', 'two' => '2'];
+echo $arr['one']; // 1
+echo '<br />';    // Перевод строки
+echo $arr['two']; // 2
diff --git a/arrays/assoc_same_keys.php b/arrays/assoc_same_keys.php
new file mode 100644
index 0000000..60ea843
--- /dev/null
+++ b/arrays/assoc_same_keys.php
@@ -0,0 +1,5 @@
+<?php
+$arr = ['one' => '1', 'two' => '2', 'two' => '3'];
+echo $arr['one']; // 1
+echo '<br />';    // Перевод строки
+echo $arr['two']; // 3
diff --git a/arrays/brackets.php b/arrays/brackets.php
new file mode 100644
index 0000000..1e38c9f
--- /dev/null
+++ b/arrays/brackets.php
@@ -0,0 +1,5 @@
+<?php
+// Создает пустой массив $arr
+$arr = [];
+// Создает такой же массив, как в предыдущем примере с именами
+$arr = ['Hello, ', 'world', '!'];
diff --git a/arrays/curly_brackets.php b/arrays/curly_brackets.php
new file mode 100644
index 0000000..cd540a4
--- /dev/null
+++ b/arrays/curly_brackets.php
@@ -0,0 +1,4 @@
+<?php
+$arr['one'] = 14;
+echo "Событие произошло {$arr['one']} дней назад";
+// Событие произошло 14 дней назад
diff --git a/arrays/for.php b/arrays/for.php
new file mode 100644
index 0000000..8ea4d69
--- /dev/null
+++ b/arrays/for.php
@@ -0,0 +1,5 @@
+<?php
+$numbers = ['1', '2', '3'];
+for ($i = 0; $i < count($numbers); $i++) {
+    echo $numbers[$i];
+}
diff --git a/arrays/foreach.php b/arrays/foreach.php
new file mode 100644
index 0000000..bef3445
--- /dev/null
+++ b/arrays/foreach.php
@@ -0,0 +1,9 @@
+<?php
+$arr = [
+    'first' => '1',
+    'second' => '2',
+    'third' => '3'
+];
+foreach ($arr as $index => $val) {
+    echo "$index = $val <br />";
+}
diff --git a/arrays/foreach_alter.php b/arrays/foreach_alter.php
new file mode 100644
index 0000000..c494857
--- /dev/null
+++ b/arrays/foreach_alter.php
@@ -0,0 +1,9 @@
+<?php
+$arr = [
+    'first' => '1',
+    'second' => '2',
+    'third' => '3'
+];
+foreach ($number as $val) {
+    echo $val; // выведет 123
+}
diff --git a/arrays/foreach_multi.php b/arrays/foreach_multi.php
new file mode 100644
index 0000000..55c7632
--- /dev/null
+++ b/arrays/foreach_multi.php
@@ -0,0 +1,14 @@
+<?php
+$ship = [
+    'Пассажирские корабли' => ['Лайнер','Яхта','Паром'],
+    'Военные корабли' => ['Авианосец','Линкор','Эсминец'],
+    'Грузовые корабли' => ['Сормовский','Волго-Дон','Окский']
+];
+foreach ($ship as $key => $type) {
+    // Вывод значений основных массивов
+    echo "<b>$key</b><br />";
+    foreach ($type as $ship) {
+        // Вывод значений для каждого из массивов
+        echo "<li>$ship</li>";
+    }
+}
diff --git a/arrays/index.php b/arrays/index.php
new file mode 100644
index 0000000..53a24a4
--- /dev/null
+++ b/arrays/index.php
@@ -0,0 +1,5 @@
+<?php
+$arr = [10 => 'Hello, ', 'world', '!'];
+echo '<pre>';
+print_r($arr);
+echo '</pre>';
diff --git a/arrays/index_auto.php b/arrays/index_auto.php
new file mode 100644
index 0000000..ca6ebfa
--- /dev/null
+++ b/arrays/index_auto.php
@@ -0,0 +1,7 @@
+<?php
+$arr[] = 'Hello, ';
+$arr[] = 'world';
+$arr[] = '!';
+echo '<pre>';
+print_r($arr);
+echo '</pre>';
diff --git a/arrays/indexes.php b/arrays/indexes.php
new file mode 100644
index 0000000..41f6abd
--- /dev/null
+++ b/arrays/indexes.php
@@ -0,0 +1,5 @@
+<?php
+$arr = [10 => 'Hello, ', 9 => 'world', 8 => '!'];
+echo '<pre>';
+print_r($arr);
+echo '</pre>';
diff --git a/arrays/indexes_default.php b/arrays/indexes_default.php
new file mode 100644
index 0000000..abd3a89
--- /dev/null
+++ b/arrays/indexes_default.php
@@ -0,0 +1,5 @@
+<?php
+$arr = [10 => 'Hello, ', 9 => 'world', '!'];
+echo '<pre>';
+print_r($arr);
+echo '</pre>';
diff --git a/arrays/interpolate.php b/arrays/interpolate.php
new file mode 100644
index 0000000..4cdd1f6
--- /dev/null
+++ b/arrays/interpolate.php
@@ -0,0 +1,4 @@
+<?php
+$arr[0] = 14;
+echo "Событие произошло $arr[0] дней назад";
+// Событие произошло 14 дней назад
diff --git a/arrays/interpolate_assoc.php b/arrays/interpolate_assoc.php
new file mode 100644
index 0000000..20a8cd1
--- /dev/null
+++ b/arrays/interpolate_assoc.php
@@ -0,0 +1,4 @@
+<?php
+$arr['one'] = 14;
+echo "Событие произошло $arr[one] дней назад";
+// Событие произошло 14 дней назад
diff --git a/arrays/interpolate_multi.php b/arrays/interpolate_multi.php
new file mode 100644
index 0000000..1cb31e5
--- /dev/null
+++ b/arrays/interpolate_multi.php
@@ -0,0 +1,6 @@
+<?php
+$arr[0][0] = 14;
+echo "Событие произошло ".$arr[0][0]." дней назад<br />";
+// Событие произошло 14 дней назад
+echo "Событие произошло {$arr[0][0]} дней назад<br />";
+// Событие произошло 14 дней назад
diff --git a/arrays/is_array.php b/arrays/is_array.php
new file mode 100644
index 0000000..9561c28
--- /dev/null
+++ b/arrays/is_array.php
@@ -0,0 +1,14 @@
+<?php
+$arr = [1, 2, 3];
+
+if (is_array($arr)) {
+    echo 'Это массив<br />';
+} else {
+    echo 'Это не массив<br />';
+}
+
+if (is_array($arr[0])) {
+    echo 'Это массив<br />';
+} else {
+    echo 'Это не массив<br />';
+}
diff --git a/arrays/isset.php b/arrays/isset.php
new file mode 100644
index 0000000..370afa4
--- /dev/null
+++ b/arrays/isset.php
@@ -0,0 +1,10 @@
+<?php
+$arr = [5 => 1, 2, 3];
+
+for ($i = 0; $i < 10; $i++) {
+    if (isset($arr[$i])) {
+        echo "Элемент \$arr[$i] существует<br />";
+    } else {
+        echo "Элемент \$arr[$i] не существует<br />";
+    }
+}
diff --git a/arrays/keys_types_ignore.php b/arrays/keys_types_ignore.php
new file mode 100644
index 0000000..1dd0e8c
--- /dev/null
+++ b/arrays/keys_types_ignore.php
@@ -0,0 +1,15 @@
+<?php
+$fst = [1 => 1, 2 => 2];
+$snd = [1 => 1, '2' => 2];
+
+if ($fst == $snd) {
+    echo 'Массивы равны<br />';
+} else {
+    echo 'Массивы не равны<br />';
+}
+
+if ($fst === $snd) {
+    echo 'Массивы эквивалентны<br />';
+} else {
+    echo 'Массивы не эквивалентны<br />';
+}
diff --git a/arrays/list.php b/arrays/list.php
new file mode 100644
index 0000000..674a5df
--- /dev/null
+++ b/arrays/list.php
@@ -0,0 +1,6 @@
+<?php
+$arr = [1, 2, 3];
+list($one, $two, $three) = $arr;
+echo $one;   // 1
+echo $two;   // 2
+echo $three; // 3
diff --git a/arrays/list_assoc.php b/arrays/list_assoc.php
new file mode 100644
index 0000000..3dfd847
--- /dev/null
+++ b/arrays/list_assoc.php
@@ -0,0 +1,6 @@
+<?php
+$arr = ['one' => 1, 'two' => 2, 'three' => 3];
+list($one, $two, $three) = $arr;
+echo $one;   // Notice: Undefined offset
+echo $two;   // Notice: Undefined offset
+echo $three; // Notice: Undefined offset
diff --git a/arrays/list_incomplete.php b/arrays/list_incomplete.php
new file mode 100644
index 0000000..bbb60d3
--- /dev/null
+++ b/arrays/list_incomplete.php
@@ -0,0 +1,4 @@
+<?php
+$arr = [1, 2, 3];
+list(, $two) = $arr;
+echo $two; // 2
diff --git a/arrays/plus.php b/arrays/plus.php
new file mode 100644
index 0000000..36c3729
--- /dev/null
+++ b/arrays/plus.php
@@ -0,0 +1,7 @@
+<?php
+$fst = [1 => 'one', 2 => 'two'];
+$snd = [3 => 'three', 4 => 'four'];
+$sum = $fst + $snd;
+echo '<pre>';
+print_r($sum);
+echo '</pre>';
diff --git a/arrays/plus_alter.php b/arrays/plus_alter.php
new file mode 100644
index 0000000..c7d5854
--- /dev/null
+++ b/arrays/plus_alter.php
@@ -0,0 +1,7 @@
+<?php
+$fst = ['one', 'two'];
+$snd = ['three', 'four', 'five'];
+$sum = $fst + $snd;
+echo '<pre>';
+print_r($sum);
+echo '</pre>';
diff --git a/arrays/print_r.php b/arrays/print_r.php
new file mode 100644
index 0000000..2988c88
--- /dev/null
+++ b/arrays/print_r.php
@@ -0,0 +1,5 @@
+<?php
+$arr = array('Hello, ', 'world', '!');
+echo '<pre>';
+print_r($arr);
+echo '</pre>';
diff --git a/arrays/search_element.php b/arrays/search_element.php
new file mode 100644
index 0000000..786cbd4
--- /dev/null
+++ b/arrays/search_element.php
@@ -0,0 +1,7 @@
+<?php
+$numbers = [0.57, '21.5', 40.52];
+if (in_array(21.5, $numbers)) {
+    echo 'Значение 21.5 найдено';
+} else {
+    echo 'Ничего не найдено';
+}
diff --git a/arrays/square.php b/arrays/square.php
new file mode 100644
index 0000000..26328da
--- /dev/null
+++ b/arrays/square.php
@@ -0,0 +1,7 @@
+<?php
+$arr[10] = 'Hello, ';
+$arr[11] = 'world';
+$arr[12] = '!';
+echo '<pre>';
+print_r($arr);
+echo '</pre>';
diff --git a/arrays/strict.php b/arrays/strict.php
new file mode 100644
index 0000000..01999bd
--- /dev/null
+++ b/arrays/strict.php
@@ -0,0 +1,7 @@
+<?php
+$numbers = [0.57, '21.5', 40.52];
+if (in_array(21.5, $numbers, true)) {
+    echo 'Значение 21.5 найдено';
+} else {
+    echo 'Ничего не найдено';
+}
diff --git a/arrays/unset.php b/arrays/unset.php
new file mode 100644
index 0000000..9cc225c
--- /dev/null
+++ b/arrays/unset.php
@@ -0,0 +1,10 @@
+<?php
+$arr = [1, 2, 3, 4, 5];
+
+// Удаляем третий элемент массива
+unset($arr[2]);
+
+// Выводим дамп массива
+echo '<pre>';
+print_r($arr);
+echo '</pre>';
diff --git a/arrays/vars_exchange.php b/arrays/vars_exchange.php
new file mode 100644
index 0000000..7f6aa90
--- /dev/null
+++ b/arrays/vars_exchange.php
@@ -0,0 +1,13 @@
+<?php
+$x = 4;
+$y = 5;
+
+echo "до:<br />";
+echo "x = $x<br />"; // 4
+echo "y = $y<br />"; // 5
+
+list($y, $x) = [$x, $y];
+
+echo "после:<br />";
+echo "x = $x<br />"; // 5
+echo "y = $y<br />"; // 4