Jump to content

Undefined variables

adamriley

By adamriley
in PHP Coding Help

 Share

Recommended Posts

adamriley Member

adamriley

Posted
Posted

hi

----------------------------------------------------------------------------------------------------

error log "[sat Jan 09 17:40:00 2010] [error] [client 127.0.0.1] PHP Notice:  Undefined variable: a1 in C:\\web\\htdocs\\Filey\\2.php on line 2, referer: http://localhost/Filey/1.php"

"[sat Jan 09 17:40:00 2010] [error] [client 127.0.0.1] PHP Notice:  Undefined variable: a3 in C:\\web\\htdocs\\Filey\\2.php on line 3, referer: http://localhost/Filey/1.php"

"[sat Jan 09 17:40:00 2010] [error] [client 127.0.0.1] PHP Notice:  Undefined variable: a2 in C:\\web\\htdocs\\Filey\\2.php on line 4, referer: http://localhost/Filey/1.php"

---------------------------------------------------------------------------------------------------

2.php

----------------------------------------------------------------------------------------------------

php
$filler1 = "<html><head><title>$a1</title>";
$filler2 = "<body>$a3";
$filler3 = "<div>$a2</div></body></html>";
$a1 = $_POST["PN"];
$a2 = $_POST["Date_name"];
$a3 = $_POST["Note"]; 
$myFile = "notenw.html";
$fh = fopen($myFile, 'w') or die("can't open file");
$stringData = "$filler1";
$stringData1 = "$filler2";
$stringData2 = "$filler3";
fwrite($fh, "$stringData\n");
fwrite($fh, "$stringData1\n");
fwrite($fh, "$stringData2\n");
fclose($fh);
?>

 

-------------------------------------------------------------------------------------------------

1.php

 

<?php require_once $_SERVER['DOCUMENT_ROOT'] . '/Login/common.php';?>
<?php if ($_SESSION['userName'] == 'Adamriley') {     $name = 'Adam lee riley';} else {     $name = 'Nathan Warburton';}
?>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>Untitled Page</title>
<script language="JavaScript" type="text/javascript">
<!--
function ValidateForm1(theForm)
{
var strFilter = /^[A-Za-zƒŠŒŽšœžŸÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖØÙÚÛÜÝÞßàáâãäåæçèéêëìíîïðñòóôõöøùúûüýþÿ \t\r\n\f0-9-]*$/;
var chkVal = theForm.TextArea1.value;
if (!strFilter.test(chkVal))
{
   alert("In your note you may only have a maximum of 100 letters");
   theForm.TextArea1.focus();
   return false;
}
if (theForm.TextArea1.value == "")
{
   alert("In your note you may only have a maximum of 100 letters");
   theForm.TextArea1.focus();
   return false;
}
if (theForm.TextArea1.value.length < 2)
{
   alert("In your note you may only have a maximum of 100 letters");
   theForm.TextArea1.focus();
   return false;
}
if (theForm.TextArea1.value.length > 100)
{
   alert("In your note you may only have a maximum of 100 letters");
   theForm.TextArea1.focus();
   return false;
}
return true;
}
//-->
</script>
</head>
<body bgcolor="#FFFFFF" text="#000000">
<div id="bv_Form1" style="position:absolute;left:58px;top:59px;width:704px;height:356px;z-index:5;" align="left">
<form name="Form1" method="POST" action="2.php" id="Form1" onsubmit="return ValidateForm1(this)">
<input type="text" id="Editbox2" style="position:absolute;left:94px;top:36px;width:483px;font-family:Courier New;font-size:16px;z-index:0" name="Date_name" value="<?php echo date("F j, Y, g:i a");  ?> ||  <?php echo $name ?>" readonly="readonly">
<input type="text" id="Editbox1" style="position:absolute;left:93px;top:4px;width:489px;font-family:Courier New;font-size:16px;z-index:1" name="PN" value="Page name (title)">
<textarea name="Note" id="TextArea1" style="position:absolute;left:81px;top:63px;width:547px;height:215px;font-family:Courier New;font-size:16px;z-index:2" rows="10" cols="51"></textarea>
<input type="submit" id="Button1" name="Button1" value="Save changes" style="position:absolute;left:336px;top:293px;width:194px;height:41px;border:3px #98FB98 solid;background-color:#0000FF;color:#FFFF00;font-family:Bookman Old Style;font-size:27px;z-index:3">
<input type="reset" id="Button2" name="Reset" value="Reset note" style="position:absolute;left:158px;top:291px;width:167px;height:44px;border:3px #FFFF00 dotted;background-color:#00FF00;color:#FF0000;font-family:Arial;font-size:27px;z-index:4">

</form>
</div>
<div id="bv_Text1" style="position:absolute;left:334px;top:9px;width:150px;height:32px;z-index:6;" align="left">
<font style="font-size:27px" color="#FF0000" face="Arial"><b>New note</b></font></div>
</body>
</html>

Link to comment
https://forums.phpfreaks.com/topic/187842-undefined-variables/
Share on other sites
wildteen88 Regular Member

wildteen88

Posted
Posted

Variables must be defined before you can use them.

$filler1 = "<html><head><title>$a1</title>";
$filler2 = "<body>$a3";
$filler3 = "<div>$a2</div></body></html>";
$a1 = $_POST["PN"];
$a2 = $_POST["Date_name"];
$a3 = $_POST["Note"];

The last three lines need to be before the first three.

Link to comment
https://forums.phpfreaks.com/topic/187842-undefined-variables/#findComment-991777
Share on other sites
adamriley Member

adamriley

Posted
  • Author
Posted

Hi this is an new error but the error is the same!

-----------------------------------------------------------------------------------------------------

error log "[sat Jan 09 18:49:32 2010] [error] [client 127.0.0.1] PHP Parse error:  syntax error, unexpected T_VARIABLE in C:\\web\\htdocs\\Filey\\2.php on line 12, referer: http://localhost/Filey/1.php"

-----------------------------------------------------------------------------------------------------------

2.php

----------------------------------------------------------------------------------------------------

<?php
$a1 = $_POST["PN"];
$a2 = $_POST["Date_name"];
$a3 = $_POST["Note"];
$filler1 = "<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">";
$filler2 = "<html";
$filler2 = "<head>";
$filler3 = "<meta http-equiv='Content-Type' content='text/html; charset=ISO-8859-1'>";
$filler4 = "<title>$a1</title>";
$filler5 = "</head>";
$filler6 = "<body bgcolor="#FFFFFF" text="#000000">";
$filler7 = "<div id="bv_Text1" style="position:absolute;left:34px;top:34px;width:713px;height:32px;z-index:0;" align="left">";
$filler8 = "<font style="font-size:27px" color="#000000" face="Arial"><b>Note name:$a1</b></font></div>";
$filler9 = "<div id="bv_Text2" style="position:absolute;left:12px;top:76px;width:781px;height:32px;z-index:1;" align="left">";
$filler10 = "<font style="font-size:27px" color="#000000" face="Arial"><b>Date and time:$a2</b></font></div>";
$filler11 = "<textarea name="TextArea1" id="TextArea1" style="position:absolute;left:41px;top:134px;width:743px;height:391px;font-family:Courier New;font-size:16px;z-index:2" rows="20" cols="70" readonly="readonly">$a3</textarea>";
$filler12 = "</body>";
$filler13 = "</html>";
$myFile = "notenw.html";
$fh = fopen($myFile, 'w') or die("can't open file");
$stringData = "$filler1";
$stringData1 = "$filler2";
$stringData2 = "$filler3";
$stringData3 = "$filler4";
$stringData4 = "$filler5";
$stringData5 = "$filler6";
$stringData6 = "$filler7";
$stringData7 = "$filler8";
$stringData8 = "$filler9";
$stringData9 = "$filler10";
$stringData10 = "$filler11";
$stringData11 = "$filler12";
$stringData12 = "$filler13";
fwrite($fh, "\n");
fwrite($fh, "$stringData1\n");
fwrite($fh, "$stringData2\n");
fwrite($fh, "$stringData3\n");
fwrite($fh, "$stringData4\n");
fwrite($fh, "$stringData5\n");
fwrite($fh, "$stringData6\n");
fwrite($fh, "$stringData7\n");
fwrite($fh, "$stringData8\n");
fwrite($fh, "$stringData9\n");
fwrite($fh, "$stringData10\n");
fwrite($fh, "$stringData11\n");
fwrite($fh, "$stringData12\n");
fclose($fh);
?>

Link to comment
https://forums.phpfreaks.com/topic/187842-undefined-variables/#findComment-991813
Share on other sites
teamatomic Newbie

teamatomic

Posted
Posted

Double quotes within double quotes must be escaped.

$filler6 = "<body bgcolor=\"#FFFFFF\" text=\"#000000\">";

If you do not need to extrapolate variables and an echo line contains double quotes as your does then enclose the line in single quotes.

$filler6 = '<body bgcolor="#FFFFFF" text="#000000">';// is good

$filler6 = '<body bgcolor="#FFFFFF" text="$color">';// is bad,it will echo exactly as you see it, color wont extrapolate...but

$filler6 = "<body bgcolor=\"$bg_color\" text=\"$text_color\">";// is good

 

HTH

Teamatomic

Link to comment
https://forums.phpfreaks.com/topic/187842-undefined-variables/#findComment-991822
Share on other sites
wildteen88 Regular Member

wildteen88

Posted
Posted

You don't need to define a variable for every line. Variable assignment can span multiple lines, example

$myVar = "Line1
Line2
Line3
...
LineXYZ etc";

 

There is no need to reassign your variables here

$stringData = "$filler1";
$stringData1 = "$filler2";
$stringData2 = "$filler3";
$stringData3 = "$filler4";
$stringData4 = "$filler5";
$stringData5 = "$filler6";
$stringData6 = "$filler7";
$stringData7 = "$filler8";
$stringData8 = "$filler9";
$stringData9 = "$filler10";
$stringData10 = "$filler11";
$stringData11 = "$filler12";
$stringData12 = "$filler13";

 

When assigning a lot of HTML code use the HEREDOC syntax instead. So your new code cleaned up

<?php

$a1 = $_POST["PN"];
$a2 = $_POST["Date_name"];
$a3 = $_POST["Note"];

// Assign all HTML code within one single variable.
// All variables within HERDOC will be parsed
$stringData = <<<HTMLCODE
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">";
<html>
<head>
<meta http-equiv='Content-Type' content='text/html; charset=ISO-8859-1'>
<title>$a1</title>
</head>
<body bgcolor="#FFFFFF" text="#000000">
<div id="bv_Text1" style="position:absolute;left:34px;top:34px;width:713px;height:32px;z-index:0;" align="left">
<font style="font-size:27px" color="#000000" face="Arial"><b>Note name:$a1</b></font></div>
<div id="bv_Text2" style="position:absolute;left:12px;top:76px;width:781px;height:32px;z-index:1;" align="left">
<font style="font-size:27px" color="#000000" face="Arial"><b>Date and time:$a2</b></font></div>
<textarea name="TextArea1" id="TextArea1" style="position:absolute;left:41px;top:134px;width:743px;height:391px;font-family:Courier New;font-size:16px;z-index:2" rows="20" cols="70" readonly="readonly">$a3</textarea>
</body>
</html>
HTMLCODE;

$myFile = "notenw.html";

$fh = fopen($myFile, 'w') or die("can't open file");

fwrite($fh, "\n");
fwrite($fh, "$stringData\n");
fclose($fh);

?>

Link to comment
https://forums.phpfreaks.com/topic/187842-undefined-variables/#findComment-991838
Share on other sites
This thread is more than a year old. Please don't revive it unless you have something important to add.

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Restore formatting

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

×
 Share
Go to topic listing
×
×
  • Create New...

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.