\n";
$status = $status . $problem;
}
// Validate the length and existence of an input value.
function validate($name, $string, $length) {
if ($string == "") complain("$name was not entered, and is required.");
else {
$slen = strlen($string);
if ($slen < $length)
complain("$name is too short, must be at least $length characters, is only $slen.");
}
}
// Add a new line to the start of an existing file.
function prepend($file,$string) {
// TO DO - use database to make this algorithm more scaleable.
// Current limit is 1000 stories.
if (file_exists($file)) {
$filetext = file($file);
$lines = count($filetext);
} else {
$lines = 0;
}
if ($lines > 1000) $lines = 1000;
$handle = fopen($file,"w");
fputs ($handle, "$string\n");
for ($i=0; $i<$lines; $i++)
fputs ($handle, $filetext[$i]);
fclose ($handle);
}
// Return the next available story number.
function getstorynum() {
// TO DO - add synchronization to prevent multi-user conflicts.
if (file_exists("filenum.txt"))
$storynum = file("filenum.txt");
else
$storynum[0] = 0;
$snum = $storynum[0] + 1;
$handle = fopen("filenum.txt","w");
fputs($handle, $snum);
fclose ($handle);
return $snum;
}
// Save the user's input to the appropriate files.
function save() {
global $storytitle;
global $storyimg;
global $synopsis;
global $storytext;
global $subject;
$storynum = getstorynum();
$entry = "$storynum^$storytitle^$storyimg^$synopsis";
prepend("Main.txt",$entry);
$topicfile = "$subject.txt";
prepend($topicfile,$entry);
// Selective Security! Convert most HTML tags to text.
//$storytext = eregi_replace("&", "&", $storytext);
$storytext = eregi_replace("<", "<", $storytext);
$storytext = eregi_replace("\"", """, $storytext);
$storytext = eregi_replace("\n", "
\n", $storytext);
$storytext = eregi_replace("
\n
", "", $storytext);
//$storytext = eregi_replace('$', "$", $storytext);
$storytext = eregi_replace("<b>", "", $storytext);
$storytext = eregi_replace("<p>", "
", $storytext);
$storytext = eregi_replace("<br>", "
", $storytext);
$storytext = eregi_replace("<hr>", "
", $storytext);
$storytext = eregi_replace("<i>", "", $storytext);
$storytext = eregi_replace("<ul>", "", $storytext);
$storytext = eregi_replace("</ul>", "
", $storytext);
$storytext = eregi_replace("</b>", "", $storytext);
$storytext = eregi_replace("</i>", "", $storytext);
$storytext = eregi_replace("</p>", "", $storytext);
$storytext = eregi_replace("<ol>", "", $storytext);
$storytext = eregi_replace("</ol>", "
", $storytext);
$storytext = eregi_replace("<li>", "", $storytext);
$storytext = eregi_replace("<table", "$storytitle | \n");
fputs($handle, " $subject |
\n");
fputs($handle, " $synopsis \n");
if ($storyimg != "")
fputs($handle, " ![](\"$storyimg\")
\n");
fputs($handle, " |
\n | $storytext |
");
fclose($handle);
}
// Initializations, Defaults, and Input Validations.
$title = "PHP Demo Author's Page";
$cats = file("category.txt");
if ($submit == "Submit") {
$status = "";
if (!isset($storyimg)) $storyimg = "$subject.gif";
validate("Subject",$subject,1);
validate("Story Title",$storytitle,10);
validate("Synopsis",$synopsis,50);
validate("Story Text",$storytext,300);
if ($status == "") {
$status = "complete";
save();
}
}
?>
<?php echo($title) ?>
Story Submission Confirmed!
Thanks for your input!
Return to Webzine
Here's Your Submission:
Story Title: $storytitle\n");
echo(" Synopsis: $synopsis
\n");
echo(" Subject: $subject
\n");
if ($storyimg != "")
echo(" Story Image:
\n");
echo(" Story Text:
\n");
echo(" $storytext
\n");
// ******************************************************************
// This part applies if there's still some work to be done.
} else {
echo(" Return to Webzine
\n");
if ($status == "")
$status = "Please fill in the items below to create your new story.\n"
. "Click the \"Submit\" button when you are done editing.";
echo("
$status
");
// The following form permits the author to enter a story...
?>