Jump to content

mahbub

Members
  • Content Count

    3
  • Joined

  • Last visited

Everything posted by mahbub

  1. mahbub

    if statement

    Syntax if (condition) { code to be executed if condition is true; }
  2. mahbub

    Variable Strings

    When I run this code, It's showing erroorrr... wts wrong with this 1 ----------------------------------------------------------------------------- <!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title> Q 1 </title> </head> <body> <h1> Radio Frequency Interference at the ATCA </h1> <p> The radio spectrum that is most often used by radio astronomers to observe the universe (frequencies of a few GHz) is also widely used by modern technology, leading to interference. Radio telescopes are very sensitive detectors of radio waves, so man-made devices that emit radio waves are easily seen. Although these devices are far less powerful than the jets of plasma emanating from a supermassive black hole in a distant galaxy, they are far, far closer. </p> <p> Since most interference is man-made, it follows the human population. Thus, remote areas might be expected to have less interference. The <q><strong> Australia Telescope Compact Array </strong></q> (ATCA) is 20km away from Narrabri, in a shire of only 14000 people. Nevertheless, radio frequency interference is a major problem.</p> <h3> Sources of RFI at <a href="http://www.narrabri.atnf.csiro.au/"> ATCA </a>: </h3> <ul> <li>mobile phones</li> <li>wi-fi</li> <li>microwave ovens</li> <li>communications satellites</li> <li>navigation satellites</li> <li>radar</li> </ul> <p> A full list of the known sources of man-made interference at the telescope covers all these and more. </p> </body> </html> 2 --------------------------------------------------------------------------- <!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title> Question 1 </title> <style type = "text/css"> body{ color: white; background-color: blue; border-color: red; border-style: solid;} h1{ font-size: 3em;} h3{ background-color: black;} ul{ font-size: 1.2em; } a{ color:white;} </style> </head> <body> <h1> Radio Frequency Interference at the ATCA </h1> <p> The radio spectrum that is most often used by radio astronomers to observe the universe (frequencies of a few GHz) is also widely used by modern technology, leading to interference. Radio telescopes are very sensitive detectors of radio waves, so man-made devices that emit radio waves are easily seen. Although these devices are far less powerful than the jets of plasma emanating from a supermassive black hole in a distant galaxy, they are far, far closer. </p> <p> Since most interference is man-made, it follows the human population. Thus, remote areas might be expected to have less interference. The <q><strong> Australia Telescope Compact Array </strong></q> (ATCA) is 20km away from Narrabri, in a shire of only 14000 people. Nevertheless, radio frequency interference is a major problem.</p> <h3> Sources of RFI at <a href="http://www.narrabri.atnf.csiro.au/"> ATCA </a>: </h3> <ul> <li>mobile phones</li> <li>wi-fi</li> <li>microwave ovens</li> <li>communications satellites</li> <li>navigation satellites</li> <li>radar</li> </ul> <p> A full list of the known sources of man-made interference at the telescope covers all these and more. </p> </body> </html> 4 -------------------------------------------- <?php $dbConn = new mysqli("location", "username", "password", "elecDatabaseName"); if($dbConn->connect_error) { die("Failed to connect to database " . $dbConn->connect_error); } ?> <?php if (isset($_POST["submit"])){ $val=$_POST["customerNum"]; $sn=$_POST["shipped"]; if ($sn=="Y"){ $sql = "SELECT orderID, orderDate,shippingDate,customer.customerID,firstName,lastName,postcode FROM customer INNER JOIN purchase ON customer.customerID=purchase.customerID WHERE customer.customerID='$val' AND purchase.shipped='$sn' ORDER BY orderDate ASC"; $results = $dbConn->query($sql)or die ('Problem with query: ' . $dbConn->error); $count = mysqli_num_rows($results); } elseif($sn=="N"){ $sql = "SELECT orderID, orderDate,shippingDate,customer.customerID,firstName,lastName,postcode FROM customer INNER JOIN purchase ON customer.customerID=purchase.customerID WHERE customer.customerID='$val' AND purchase.shipped='$sn' ORDER BY orderDate ASC"; $results = $dbConn->query($sql)or die ('Problem with query: ' . $dbConn->error); $count = mysqli_num_rows($results); }} ?> <?php if ($count>0){ ?> <table> <tr> <th>orderID</th> <th>orderDate</th> <th>shippingDate</th> <th>customerID</th> <th>firstName</th> <th>lastName</th> <th>postcode</th> </tr> <?php while ($row = $results->fetch_assoc()) { ?> <tr> <td><?php echo $row["orderID"]?></td> <td><?php echo $row["orderDate"]?></td> <td><?php echo $row["shippingDate"]?></td> <td><?php echo $row["customerID"]?></td> <td><?php echo $row["firstName"]?></td> <td><?php echo $row["lastName"]?></td> <td><?php echo $row["postcode"]?></td> </tr> <?php } $dbConn->close(); ?> </table> <?php } else{ echo "Nothing Found"; } ?> </body> </html> ------------------------- 1.......................................................... <!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>WAASAAS Frequent Flier Survey - Speak your Brains!</title> <link href="styles.css" rel="stylesheet"> </head> <body> <h1> WAASAAS Frequent Flier Survey</h1> <form id="Q3form" method="post" action="survey.php" > <p> <label for="first">First Name:</label> <input type="text" id="first" name="first"> <label for="last">Family Name:</label> <input type="text" id="last" name="last"> </p> <p> <label for="ffno">WAASAAS Frequent Flier Number:</label> <input type="text" id="ffno" name="ffno" placeholder=""> </p> <br> <br> <label for="meal">Preferred meal:</label> <select id="meal" name="meal" size="1"> <option value=""> -- </option> <option value="std"> Standard </option> <option value="veg"> Vegetarian </option> <option value="vegan"> Vegan </option> <option value="gf"> Gluten-free </option> <option value="fruit"> Fruitarian </option> <option value="meat"> Meat-lover's - no vegetables </option> <option value="vegemite"> Vegemite sandwich </option> </select> <br> <p>What do you like to do during flights?<br> <input type="checkbox" id="chbx1" name="inflight" value="snore"><label for="chbx1">Snore loudly</label><br> <input type="checkbox" id="chbx2" name="inflight" value="eat"><label for="chbx2">Eat messily</label><br> <input type="checkbox" id="chbx3" name="inflight" value="talk"><label for="chbx3">Talk to the person next to you</label><br> <input type="checkbox" id="chbx4" name="inflight" value="whinge"><label for="chbx4">Complain to the cabin crew</label><br> <input type="checkbox" id="chbx5" name="inflight" value="sleep"><label for="chbx5">Sleep in the aisle</label><br> </p> <br> <input type="submit" value="Submit"> <input type="reset" value="Reset"> </form> </body> </html> 2 ................................................... body { margin:0; padding:0; font-family: Arial; font-size:1em; font-color:navy; background-color:white; color:#000000; } h1{ font-size:90px;} form { margin:20px; background-color:lightblue; padding:0.5cm; } input[type="text"], select { width:250px; padding:3px; font-size:1em; } input[type="submit"] { padding:3px; font-size:1em; } label { display:inline-block; width:150px; } table { border-collapse: collapse; margin:10px; } table, th, td { border: black solid 1px; padding:3px; text-align: center; } 3 ----------------------------------------- <!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>WAASAAS Frequent Flier Survey - Speak your Brains!</title> <link href="styles.css" rel="stylesheet"> <style type="text/css"> table, td { border: 1px solid gray; padding:3px; } input[type="text"] { border: 1px solid black; } .error { color:red; } </style> </head> <body> <?php if ( isset($_POST["submit"])) { $x=$_POST["first"]; $y=$_POST["last"]; $z=$_POST["ffno"]; $Msg1= '<span class="error">You must enter First Name.</span>'; $Msg2= '<span class="error">You must enter Family Name.</span>'; $Msg3= '<span class="error">You must enter WAASAAS Frequent Flier Number:.</span>'; $Msg4= '<span class="error">You must choose a preferred meal.</span>'; $Msg5= '<span class="error">You must choose at least one option </span>'; $Msg= '<span class="error">You must enter a 8 digit number </span>'; } ?> <h1> WAASAAS Frequent Flier Survey</h1> <form id="Q3form" method="post" action="question3.php" > <p> <label for="first">First Name:</label> <input type="text" id="first" name="first" value="<?php if ( isset($_POST["submit"])) echo htmlspecialchars($x); ?>" ><?php if ( isset($_POST["submit"]) && empty($_POST["first"])) echo $Msg1; ?> <label for="last">Family Name:</label> <input type="text" id="last" name="last" value="<?php if ( isset($_POST["submit"])) echo htmlspecialchars($y); ?>" ><?php if ( isset($_POST["submit"]) && empty($_POST["last"])) echo $Msg2; ?> </p> <p> <label for="ffno">WAASAAS Frequent Flier Number:</label> <input type="text" id="ffno" name="ffno"value="<?php if ( isset($_POST["submit"])) echo htmlspecialchars($z); ?>" placeholder=""><?php if ( isset($_POST["submit"]) && empty($_POST["ffno"])) echo $Msg3; elseif (isset($_POST["submit"]) && !preg_match('/^[0-9]{8}$/', $z)) echo $Msg; ?> </p> <br> <br> <?php if ( isset($_POST["submit"]) && empty($_POST["meal"])) echo $Msg4; ?> <br> <label for="meal">Preferred meal:</label> <select id="meal" name="meal" size="1"> <option value=""> -- </option> <option value="std"> Standard </option> <option value="veg"> Vegetarian </option> <option value="vegan"> Vegan </option> <option value="gf"> Gluten-free </option> <option value="fruit"> Fruitarian </option> <option value="meat"> Meat-lovers - no vegetables </option> <option value="vegemite"> Vegemite sandwich </option> </select> <br> <?php if ( isset($_POST["submit"]) && empty($_POST["inflight"])) echo $Msg5; ?> <br> <p>What do you like to do during flights?<br> <input type="checkbox" id="chbx1" name="inflight" value="snore"><label for="chbx1">Snore loudly</label><br> <input type="checkbox" id="chbx2" name="inflight" value="eat"><label for="chbx2">Eat messily</label><br> <input type="checkbox" id="chbx3" name="inflight" value="talk"><label for="chbx3">Talk to the person next to you</label><br> <input type="checkbox" id="chbx4" name="inflight" value="whinge"><label for="chbx4">Complain to the cabin crew</label><br> <input type="checkbox" id="chbx5" name="inflight" value="sleep"><label for="chbx5">Sleep in the aisle</label><br> </p> <br> <input type="submit" name= "submit" value="Submit"> <input type="reset" value="Reset"> </form> </body> </html> Question 4------------------ <!DOCTYPE html> <html lang="en"> <head><meta charset="utf-8"> <title>weekten Exercise 3</title> <link rel="stylesheet" href="styles.css"> <style type="text/css"> table, td { border: 1px solid gray; padding:3px; } input[type="text"] { border: 1px solid black; } .error { color:red; } </style> </head> <body> <?php $numMsg = ""; $prodMsg = ""; if (isset($_POST["quantity"])){ $val = $_POST["quantity"]; if (is_numeric($val)) { require_once("conn.php"); $sql = "SELECT name, quantityInStock, price FROM product WHERE quantityInStock > $val ORDER BY quantityInStock ASC"; $results = $dbConn->query($sql)or die ('Problem with query: ' . $dbConn->error); } elseif (!is_numeric($val)) { echo '<span class="error">The value entered for the quantity was not a number.</span>'; }} ?> <?php if (isset($_POST["quantity"])&&$val<60 && is_numeric($val)) { ?> <h1>Products with stock > <?php echo $val ?></h1> <table> <tr> <th>Name</th> <th>Quantity In Stock</th> <th>Price</th> </tr> <?php while ($row = $results->fetch_assoc()) { ?> <tr> <td><?php echo $row["name"]?></td> <td><?php echo $row["quantityInStock"]?></td> <td><?php echo $row["price"]?></td> <!--output the other fields here from the $row array --> </tr> <?php } $dbConn->close(); ?> </table> <?php }elseif (isset($_POST["quantity"])&&is_numeric($val)) { ?> <?php $prodMsg = '<span class="error">There are no products that have more than ' .$val . ' in stock <span>';?> <?php echo $prodMsg; ?> <?php } ?> </body> </html>
×
×
  • Create New...