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<?php
function beginPage($title){
echo "<!DOCTYPE html>\n";
echo "<html lang=\"en\">\n";
echo "<head>\n";
echo " <title>$title</title>\n";
echo " <meta charset=\"UTF-8\">\n";
echo "</head>\n";
echo "<body>\n";
echo " <h1>$title</h1>\n";
}
function endPage(){
echo'
<footer style="color:silver; font-size:smaller;">Written by Jim Martinson.</footer>
</body>
</html>
';
}
function formValue($formVariable=NULL, $defaultValue=NULL){
$value = $defaultValue;
if(is_null($formVariable)){
// $formVariable is null
$noValue = array();
foreach($_GET as $key => $data){
$data = htmlspecialchars(trim($data));
$noValue[$key] = $data;
}
foreach($_POST as $key => $data){
$data = htmlspecialchars(trim($data));
$noValue[$key] = $data;
}
return $noValue;
}else{
if(is_array($formVariable)){
//$formVariable is an array
$variableArray = array();
foreach($formVariable as $index){
if(isset($_GET[$index])) {
$value = htmlspecialchars(trim($_GET[$index]));
$variableArray[$index] = $value;
}
if(isset($_POST[$index])) {
$value = htmlspecialchars(trim($_POST[$index]));
$variableArray[$index] = $value;
}
else{
$value = NULL;
$variableArray[$index] = $value;
}
}
return $variableArray;
}else{
//$formVariable is a string
if(strpos($formVariable, ",") !== false){
// $formVariable has comma
$array = explode(",", $formVariable);
return formValue($array);
}else{
// $formVariable is a plain string
if(isset($_GET[$formVariable])) { $value = htmlspecialchars(trim($_GET[$formVariable]));}
if(isset($_POST[$formVariable])) { $value = htmlspecialchars(trim($_POST[$formVariable]));}
return $value;
}
}
}
}
?>