hr_ui.inc
hr_ui.inc
The PHP source code for the user interface functions is:
<?php
function ui_islogged_in()
{
return isset($_SESSION['loggedin']);
}
function ui_print_login_form($posturl)
{
echo <<<END
<form method="post" action="$posturl">
<table>
<tr>
<td>Username:</td><td><input name="username" type="text" size="20"></td>
</tr>
<tr>
<td>Password:</td><td><input name="password" type="password" size="20"></td>
</tr>
</table>
<input type="submit" value="Login"> <input type="reset" value="Clear">
</form>
END;
}
function ui_print_header($title)
{
$title = htmlentities($title);
echo <<<END
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"
"http://www.w3.org/TR/html4/strict.dtd">
<html>
<head>
<meta http-equiv="Content-Type"
content="text/html; charset=ISO-8859-1">
<link rel="stylesheet" type="text/css" href="style.css">
<title>Sperling: $title</title>
</head>
<body>
<h1>$title</h1>
END;
if (ui_islogged_in()) {
echo '<div class="logout">';
echo "Logged in as <b><i>".$_SESSION['UN']."</i></b> ";
echo '<a href="'.$_SERVER['SCRIPT_NAME'].'?do=logout">Logout</a>';
echo '</div>';
}
}
function ui_print_footer($date)
{
$date = htmlentities($date);
echo <<<END
<br>
<div class="footer">
<div class="date">$date</div>
<div class="company">Sperling</div>
</div>
</body>
</html>
END;
}
function ui_print_department($deptrecs)
{
if (!$deptrecs) {
echo '<p>No Department found</p>';
}
else {
echo <<<END
<table>
<tr>
<th>Id</th>
<th>Name</th>
<th>Number of<br>Employees</th>
<th>Manager</th>
<th>Location</th>
</tr>
END;
foreach ($deptrecs as $dept) {
echo '<tr>';
echo '<td>'.htmlentities($dept['DEPARTMENT_ID']).'</td>';
echo '<td>'.htmlentities($dept['DEPARTMENT_NAME']).'</td>';
echo '<td><a href='.$_SERVER['SCRIPT_NAME'].'?do=showemp&deptid='.
htmlentities($dept['DEPARTMENT_ID']).'>'.
htmlentities($dept['NUMBER_OF_EMPLOYEES']).'</a></td>';
echo '<td>'.htmlentities($dept['MANAGER_NAME']).'</td>';
echo '<td>'.htmlentities($dept['COUNTRY_NAME']).'</td>';
echo '</tr>';
}
echo <<<END
</table>
END;
}
}
function ui_print_employees($employeerecords)
{
if (!$employeerecords) {
echo '<p>No Employee found</p>';
}
else {
echo <<<END
<table>
<tr>
<th>Employee<br>ID</th>
<th>Employee<br>Name</th>
<th>Hiredate</th>
<th>Salary</th>
<th>Commission<br>(%)</th>
</tr>
END;
// Write one row per employee
foreach ($employeerecords as $emp) {
echo '<tr>';
echo '<td align="right">'.
htmlentities($emp['EMPLOYEE_ID']).'</td>';
echo '<td>'.htmlentities($emp['EMPLOYEE_NAME']).'</td>';
echo '<td>'.htmlentities($emp['HIRE_DATE']).'</td>';
echo '<td align="right">'.
htmlentities($emp['SALARY']).'</td>';
echo '<td align="right">'.
htmlentities($emp['COMMISSION_PCT']).'</td>';
echo '</tr>';
}
echo <<<END
</table>
END;
}
if (isset($_REQUEST['deptid'])) {
echo <<<END
<form>
<input type="button" value="Back" onClick="javascript:history.back();">
</form>
END;
}
}
function ui_print_error()
{
ui_print_header('Error');
if (!isset($_SESSION['err'])) {
echo '<p>Unknown error</p>';
}
else {
$message = $_SESSION['err'];
echo "<p>Error at line {$message['LINE']} of ". "{$message['FILE']}</p>"; // Uncommented for debugging
echo "<p>{$message['MESSAGE']}</p>";
unset($_SESSION['err']);
}
echo <<<END
<form>
<input type="button" value="Back" onClick="javascript:history.back();">
</form>
END;
ui_print_footer(date('Y-m-d H:i:s'));
}
?>
Additional Information
These functions are called by hr.php. These functions make extensive use of PHP's "here document" to output many HTML tags. It is important to be aware that the keyword END is used as a marker for the end of "here document" text. END must be at the start of the line; otherwise, it will be included as part of the text in "here document".
Note: The ui_print_header() function uses a <link> tag referencing the styles.css Cascading Style Sheet file. The CSS file is used to help with the appearance and usability of the application user interface.
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