| try throw catch | if it is tried, if its ok execute that,if tried false, throw the error and execute the catch |
| if it is tried, if its ok execute that,if tried false, throw the error and execute the catch | |
| <?php | |
| $loggedin = true; | |
| if ($loggedin ){ | |
| echo 'welcome'; | |
| } else { | |
| echo 'please log in'; | |
| } | |
| ?> | |
| arrays and types | |
| <?php | |
| Array ( [0] => react [1] => angular [2] => vue ) | |
| $javascript = array("react", "angular", "vue"); | array(3) { [0]=> string(5) "react" [1]=> string(7) "angular" [2]=> string(3) "vue" } |
| print_r ($javascript); | |
| echo '<br>'; | angular |
| var_dump($javascript); | |
| echo "<h3>$javascript[1] </h3>"; | array(3) { ["react"]=> string(8) "facebook" ["angular"]=> string(6) "google" ["vue"]=> string(8) "evan you" } |
| // associative array | |
| $javascript_a = array ( | |
| react => "facebook", | array(2) { [0]=> array(2) { ["userid"]=> string(5) "user1" ["password"]=> string(4) "1234" } [1]=> array(2) { ["userid"]=> string(5) "user2" ["password"]=> string(4) "4321" } } |
| angular => "google", | |
| vue => "evan you" | user1 |
| ); | |
| var_dump($javascript_a); | |
| echo "<h3>$javascript_a[react] </h3>"; | |
| // multi dimensional array | |
| $users = array ( | |
| array( "userid" => "user1", "password" => "1234"), | |
| array( "userid" => "user2", "password" => "4321") | |
| ); | |
| var_dump($users); | |
| echo '<h3>' . $users[0]["userid"] .'</h3>'; | |
| ?> | |
| loops | |
| to do repetitve task | |
| <?php | |
| echo '<h1> while loop </h1>'; | |
| $limit = 10; | |
| $number = 0; | |
| echo "<u1>"; | |
| while ($number <= $limit) { | |
| echo "<li> $number </li>"; | |
| $number++; | |
| } | |
| echo "</ul>"; | |
| echo "<hr>"; | |
| // for loop | |
| echo '<h1> for loop </h1>'; | |
| echo "<ul>"; | |
| for ($i=0; $i <= $limit; $i++){ | |
| echo "<li> $i </li>"; | |
| } | |
| echo "</ul>"; | |
| //do while loop | |
| echo "<h1> do while loop </h1>"; | |
| $number = 0; | |
| echo "<ul>"; | |
| do { | |
| echo "<li> $number </li>"; | |
| $number++;} | |
| while ($number <= $limit); | |
| // for each loop | |
| echo '<h3> for each loop </h3>'; | |
| $names = array ("bob", "jane", "charlie"); | |
| echo "<ul>"; | |
| foreach ($names as $name){ | |
| echo "<li> $name </li>"; | |
| } | |
| echo "</ul>"; | |
| //forechloop | |
| echo '<h3> for each loop </h3>'; | |
| $languages = array ( | |
| php => "laravel", | |
| python => "django" | |
| ); | |
| echo "<ul>"; | |
| foreach ($languages as $language => $framework){ | |
| echo "<li> frame work for language: $framework </li>"; | |
| } | |
| echo "</ul>"; | |
| ?> | |
| <?php | |
| function sayhi(){ | |
| echo "hi everyone"; | |
| } | |
| sayhi(); | |
| sayhi(); | |
| sayhi(); | |
| ?> | |
| <?php | |
| function add($num1, $num2){ | |
| return $num1+ $num2; | |
| } | |
| echo '<h4> the sum of 20 and 30 is ' . add(20,30); | |
| ?> | |
| login page | |
| <?php | |
| ?> | |
| <form action="dashboard.php" method="post"> | |
| <input type ="text" name ="userid"> | |
| <input type="password" name ="password"> | |
| <input type ="submit" value="login"> | |
| </form> | |
| <?php | |
| $userid = $_POST["userid"]; | |
| $password = $_POST["password"]; | |
| if ($userid == "gtcoding" && $password =="123456"){ | |
| echo "<h1> welcome . $userid </h1>"; | |
| } else { | |
| echo "incorrect login details"; | |
| } | |
| ?> | |
| index.php | |
| <?php include "header.php"; ?> | |
| <h4 class="page1" > page 1 </h4> | |
| <?php include "footer.php"; ?> | |
| header.php | |
| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <title> gtcoding </title> | |
| <link rel ="stylesheet" type ="text/css" href ="style.css"> | |
| </head> | |
| <body> | |
| <header> | |
| <h1> gtcoding </h1> | |
| <ul> | |
| <li> <a href="index.php"> page1 </a> </li> | |
| <li> <a href="page2.php"> page2 </a> </li> | |
| </ul> | |
| </header> | |
| </body> | |
| </html> | |
| footer.php | |
| <html> | |
| <body> | |
| <footer> | |
| <P> this website is created by gt coding </p> | |
| </footer> | |
| </body> | |
| </html> | |
| page2.php | |
| <?php include "header.php"; ?> | |
| <h4 class="page2" > page 2 </h4> | |
| <?php include "footer.php"; ?> | |
| <?php
require "header1.php"; ?> <h4 class="page1" > page 1 </h4> <?php include "footer.php"; ?> |
|
| <?php include "header1.php"; ?> | |
| <h4 class="page1" > page 1 </h4> | |
| <?php include "footer.php"; ?> | |
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