first commit

add_contact.php

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+<?php
+function showFormAddContact($error = 0) {
+    echo '<strong>Add Contact</strong><br/><br/>';
+    echo '<form method="POST">';
+    echo 'Name';
+    echo '<input class="form-control" type="text" name="name" autofocus/>';
+    echo 'Email';
+    echo '<input class="form-control" type="email" name="email"/>';
+    echo 'Address';
+    echo '<input class="form-control" type="textarea" name="address"/>';
+    echo 'Phone';
+    echo '<input class="form-control" type"tel" name="phone"/><br/>';
+    echo '<input class="btn btn-dark" type="submit" value="Save"/>';
+    echo '</form>';
+    if($error == 1) {
+        echo '<p>Error inserting in database</p>';
+    } elseif ($error == 2) {
+        echo '<p>Field "name" cannot be blank</p>';
+    }
+}
+
+function addContact($name, $email, $address, $phone) {
+    require 'config.php';
+    $data = array();
+
+    $sql = "INSERT INTO contact (name, email, address, phone) VALUES ";
+    $sql.="(:name, :email, :address, :phone)";
+
+    $sql = $pdo->prepare($sql);
+    $sql->bindValue(':name', $name);
+    $sql->bindValue(':email', $email);
+    $sql->bindValue(':address', $address);
+    $sql->bindValue(':phone', $phone);
+
+    $sql->execute();
+
+    if($pdo->lastInsertId() > 0) {
+        return 0;
+    } else {
+        return 1;
+    }
+}
+
+?>

config.php

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+<?php
+try {
+    $pdo = new PDO("mysql:dbname=agenda_telefonica;host=localhost", "root", "123");
+} catch(PDOException $e) {
+    echo "Error: ".$e->getMessage();
+    exit;
+}
+?>

contacts.php

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+<?php
+require 'config.php';
+require 'search_contact.php';
+require 'add_contact.php';
+require 'edit_contact.php';
+require 'remove_contact.php';
+
+function showMenu() {
+    //menu add contact/edit contact
+    if(isset($_GET['add_contact']) || isset($_GET['edit'])) {
+        $result = 0;
+
+        if(isset($_POST['name'])) {
+            if(!empty($_POST['name'])) {
+                $name = addslashes($_POST['name']);
+                $email = addslashes($_POST['email']);
+                $address = addslashes($_POST['address']);
+                $phone = addslashes($_POST['phone']);
+
+                //edit contact in db
+                if(isset($_GET['id'])) {
+                    $id = addslashes($_GET['id']);
+                    $result = editContact($id, $name, $email, $address, $phone);
+                //add contact to db
+                } else {
+                    $result = addContact($name, $email, $address, $phone);
+                }
+
+                if($result == 0) {
+                    header('Location: contacts.php');
+                }
+
+            } else {
+                $result = 2;
+            }
+        }
+
+        //edit form
+        if(isset($_GET['id'])) {
+            $id = addslashes($_GET['id']);
+            showFormEditContact(getContactById($id), $result);
+        //add form
+        } else {
+            showFormAddContact($result);
+        }
+
+    //menu search contact
+    } elseif(isset($_GET['search_contact'])) {
+        if(!isset($_GET['search']) || empty($_GET['search'])) {
+            showFormSearch();
+        }
+    //remove contact
+    } elseif(isset($_GET['remove'])) {
+        $id = addslashes($_GET['id']);
+        if(getContactById($id)) {
+            removeContact($id);
+            showHomeMenu();
+        }
+    ///menu home
+    } else {
+        showHomeMenu();
+    }
+
+}
+
+//page navigation
+//number of contacts per page
+$contact_per_page = 2;
+
+//get the actual page
+$pg = 1;
+if(isset($_GET['p']) && !empty($_GET['p'])) {
+    $pg = addslashes($_GET['p']);
+}
+$p = ($pg - 1) * $contact_per_page;
+
+//number of pages
+function getMaxPage() {
+    global $pdo;
+    global $contact_per_page;
+
+    $sql = "SELECT COUNT(*) AS num FROM contact";
+    //show search results
+    if(isset($_GET['search']) && !empty($_GET['search'])) {
+        $search = addslashes($_GET['search']); 
+        $search = '%'.$search.'%';
+        $sql.= " WHERE name LIKE ?";
+        $sql = $pdo->prepare($sql);
+        $sql->execute(array($search));
+    } else {
+        $sql = $pdo->query($sql);
+    }
+    $sql = $sql->fetch();
+    $num = intval($sql['num']);
+    return ceil($num/$contact_per_page);
+}
+
+//current page content
+function getContactsPerPage($page = 0) {
+    global $pdo;
+    global $contact_per_page;
+
+    $sql = "SELECT * FROM contact";
+    if(isset($_GET['search']) && !empty($_GET['search'])) {
+        $search = addslashes($_GET['search']); 
+        $search = '%'.$search.'%';
+        $sql.= " WHERE name LIKE ?";
+        $sql.= " LIMIT $page, $contact_per_page";
+        $sql = $pdo->prepare($sql);
+        $sql->execute(array($search));
+    } else {
+        $sql.= " LIMIT $page, $contact_per_page";
+        $sql = $pdo->query($sql);
+    }
+
+    $contacts = $sql->fetchAll();
+
+    return $contacts;
+}
+
+function getContactById($id) {
+    $contact = array();
+    global $pdo;
+    $sql = "SELECT * FROM contact WHERE id = :id";
+    $sql = $pdo->prepare($sql);
+    $sql->bindValue(':id', $id);
+    $sql->execute();
+
+    if($sql->rowCount() > 0) {
+        $contact = $sql->fetch();
+    }
+
+    return $contact;
+}
+
+function showHomeMenu() {
+    echo '<strong>Menu</strong><br/><br/>';
+    echo '<a href="?add_contact" class="btn btn-dark">Add Contact</a><br/><br/>';
+    echo '<a href="?search_contact=true" class="btn btn-dark">Find Contact</a><br/><br/>';
+}
+
+function showContacts($contacts) {
+    if(count($contacts) > 0) {
+        echo '<strong>Contacts</strong><br/><br/>';
+        echo '<div id="contatos">';
+        echo '<table class="table borderless" width="100%">';
+        foreach($contacts as $contact) {
+            echo '<tr class="controls"><td colspan="2"><a href="contacts.php?remove=true&id='.$contact['id'].'"><img src="images/delete.png"></a><a href="contacts.php?edit=true&id='.$contact['id'].'"><img src="images/edit.png"/></a></td></tr>';
+            echo '<tr><th>Name</th><td>'.$contact['name'].'</td></tr>';
+            echo '<tr><th>Email</th><td>'.$contact['email'].'</td></tr>';
+            echo '<tr><th>Phone</th><td>'.$contact['phone'].'</td></tr>';
+            echo '<tr><th>Address</th> <td>'.$contact['address'].'</td></tr>';
+            echo '<tr class="space"><td colspan="2"></td></tr>';
+        }
+        echo '</table>';
+        echo '</div>'; 
+    }
+}
+?>
+
+<!DOCTYPE html/>
+<html>
+<head>
+    <title>Contact Schedule</title>
+    <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-beta/css/bootstrap.min.css" integrity="sha384-/Y6pD6FV/Vv2HJnA6t+vslU6fwYXjCFtcEpHbNJ0lyAFsXTsjBbfaDjzALeQsN6M" crossorigin="anonymous">
+    <script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-beta/js/bootstrap.min.js" integrity="sha384-h0AbiXch4ZDo7tp9hKZ4TsHbi047NrKGLO3SEJAg45jXxnGIfYzk4Si90RDIqNm1" crossorigin="anonymous"></script>
+    <link rel="stylesheet" type="text/css" href="css/style.css"/>
+</head>
+<body>
+    <div class="container">
+        <div class="row main-area">
+            <div class="col-md-1">
+            <?php if(!$p==0 && !isset($_GET['search'])):?>
+                <a href="?p=<?php if($pg>1){echo $pg-$contact_per_page;}?>" class="btn btn-default btn-back"><img width="50px" src="images/back.png"/></a>
+            <?php elseif(isset($_GET['search']) && $pg>1):?>
+                <a href="<?php echo "?search=".$_GET['search'].'&p='.($pg-$contact_per_page);?>" class="btn btn-default btn-back"><img width="50px" src="images/back.png"/></a>
+            <?php elseif(!$_GET || (isset($_GET['p']) && $_GET['p'] == 0)): ?>
+                <a href="index.php" class="btn btn-default btn-back"><img width="50px" src="images/back.png"/></a>
+            <?php else: ?>
+                <a href="contacts.php" class="btn btn-default btn-home"><img width="50px" src="images/home.png"/></a>
+            <?php endif?>
+            </div>
+            <div class="col-md-5 page1">
+                <div class="agenda">
+                    <?php
+                    if(!empty($_GET['search'])) {
+                        showContacts(getContactsPerPage($p));
+                        $pg+=1;
+                    } elseif($pg == 1 && empty($_GET['search'])) {
+                        showMenu();
+                    }
+                    else {
+                        showContacts(getContactsPerPage($p));
+                    }
+                    ?>
+                </div>
+            </div>
+                <div class="controles">
+                </div>
+            <div class="col-md-5 page2">
+                <div class="agenda">
+                    <?php
+                    if($pg <= getMaxPage() && !isset($_GET['edit'])){
+                        if(!empty($_GET['search'])) {
+                            showContacts(getContactsPerPage($p+$contact_per_page));
+                            $pg+=1;
+                        }
+                        elseif($p == 0) {
+                            showContacts(getContactsPerPage($p));
+                        }
+                         else {
+                            showContacts(getContactsPerPage($p+$contact_per_page));
+                            $pg+=1;
+                        }
+                    }
+                    ?>
+                </div>
+            </div>
+            <div class="col-md-1">
+                <?php
+                echo '<a href="contacts.php';
+                if(isset($_GET['search'])){
+                    echo "?search=".$_GET['search'].'&';
+                    if($pg<=getMaxPage()){
+                        echo 'p='.$pg;
+                    } else {
+                        echo 'p='.'0';
+                    }
+
+                }else {
+                    echo '?';
+                    if($pg<getMaxPage()){
+                        echo 'p='.($pg+1);
+                    } else {
+                        echo 'p='.'0';
+                    }
+                }    
+                echo '" class="btn btn-default btn-foward">';
+                ?>
+                <img width="50px" src="images/back.png"/></a>
+            </div>
+        </div>
+    </div>
+</body>
+</html>

contacts.sql

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+-- --------------------------------------------------------
+-- Host:                         127.0.0.1
+-- Server version:               10.1.26-MariaDB-0+deb9u1 - Debian 9.1
+-- Server OS:                    debian-linux-gnu
+-- HeidiSQL Version:             9.4.0.5125
+-- --------------------------------------------------------
+
+/*!40101 SET @OLD_CHARACTER_SET_CLIENT=@@CHARACTER_SET_CLIENT */;
+/*!40101 SET NAMES utf8 */;
+/*!50503 SET NAMES utf8mb4 */;
+/*!40014 SET @OLD_FOREIGN_KEY_CHECKS=@@FOREIGN_KEY_CHECKS, FOREIGN_KEY_CHECKS=0 */;
+/*!40101 SET @OLD_SQL_MODE=@@SQL_MODE, SQL_MODE='NO_AUTO_VALUE_ON_ZERO' */;
+
+-- Dumping structure for table agenda_telefonica.contact
+CREATE TABLE IF NOT EXISTS `contact` (
+  `id` int(11) NOT NULL AUTO_INCREMENT,
+  `name` varchar(30) NOT NULL,
+  `email` varchar(30) DEFAULT NULL,
+  `address` varchar(200) DEFAULT NULL,
+  `phone` varchar(30) DEFAULT NULL,
+  PRIMARY KEY (`id`)
+) ENGINE=InnoDB AUTO_INCREMENT=34 DEFAULT CHARSET=utf8mb4;
+
+-- Dumping data for table agenda_telefonica.contact: ~11 rows (approximately)
+/*!40000 ALTER TABLE `contact` DISABLE KEYS */;
+INSERT INTO `contact` (`id`, `name`, `email`, `address`, `phone`) VALUES
+	(11, 'luan', '[email protected]', 'dsadasds', '2233'),
+	(12, 'carlos', '[email protected]', 'dsadadas', '3332'),
+	(13, 'testador3', 'dasdasdas@dsadas', 'dasdasds', '123'),
+	(14, 'testador4', 'dasdasds@dsadasds', 'dasdads', '232132'),
+	(15, 'testador5', 'dasdas@dsadsa', 'dasdasda', '12323213'),
+	(16, 'testador10', 'dsadaas@dsada', 'dsdas', '123'),
+	(17, 'filipe', '[email protected]', 'sao paulo', '33442233'),
+	(29, 'testador99', 'dsadas@dsda', 'dsadasdas', '1231223'),
+	(30, 'antonio', '[email protected]', 'dsadsadsadsadas', '23123213'),
+	(31, 'antonio', '[email protected]', 'dsadsadsadsadas', '23123213'),
+	(32, 'joao3', 'dsadasd@dsadasd', 'dasdasdas', '1231231');
+/*!40000 ALTER TABLE `contact` ENABLE KEYS */;
+
+/*!40101 SET SQL_MODE=IFNULL(@OLD_SQL_MODE, '') */;
+/*!40014 SET FOREIGN_KEY_CHECKS=IF(@OLD_FOREIGN_KEY_CHECKS IS NULL, 1, @OLD_FOREIGN_KEY_CHECKS) */;
+/*!40101 SET CHARACTER_SET_CLIENT=@OLD_CHARACTER_SET_CLIENT */;

css/style.css

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+body {
+    color: #FFF;
+}
+.main-area {
+    margin-top: 50px;
+}
+.agenda {
+    background-color: #1a5276;
+    border-radius: 2px;
+    border: 1px solid black; 
+    padding: 50px;
+    text-align: center;
+    height: 600px;
+}
+.page1, .page2 {
+    padding:0;
+}
+.contatos {
+    /*color: #FFF;*/
+}
+
+.borderless .controls  td {
+    border: none !important;
+    padding: 0px;
+    padding-bottom: .75rem;
+}
+.controls img {
+    width: 25px;
+    float: right;
+    margin-left: 10px;
+}
+.space {
+    height: 20px;
+}
+.btn-foward img{
+    transform: rotateY(180deg);
+}