PHP - Add Read More To Manual Excerpt On Wordpress

Where in the PHP manual can I find information about input validation? I looked and I seem to not find it.

I am intending to create my own email input validation.

Hello all,

My knowledge in PHP is growing everyday as I try out more stuff but I really didn't understand this bit :
"Note: Please note that the ternary operator is a statement, and that it doesn't evaluate to a variable, but to the result of a statement. This is important to know if you want to return a variable by reference. The statement return $var == 42 ? $a : $b; in a return-by-reference function will therefore not work and a warning is issued in later PHP versions. ".

taken from the page : http://www.php.net/manual/en/language.operators.comparison.php

From what I understood, if I was to use a ternery condition in the return statement, and return a referenced variable as a result, it
shouldn't work?

So this shouldn't work?

$int = 10;

function testReturn(&$referencedVariable) {
return (1==1) ? $referencedVariable : FALSE;
}

echo testReturn($int);


But it does. Anyways i'm pretty sure I didn't understand this right, so help with this is really appreciated

Hi there, I am wondering if you guys can help me make it so my session times out after a previously set time. I have researched this and found no luck. Here is my code....

Code: [Select]
<?php
session_start();

$username = $_SESSION['username'];
$userid = $_SESSION['userid'];
?>

Thanks in advance!

[ m ]printf[/ m]produces a link to   php.net/<span>printf   Unless you use nobbc tags, then it works fine ???
Edited by Barand, 24 November 2014 - 02:25 PM.

Hello forum.
I'm new here, but I've been reading and finding useful things for a while now.

I'm still new to PHP and I need a little help.

I'm doing a school project and I have some things I want to do, but do not know how to write it down in PHP.

I think I'll ask a lot of questions this week, and I hope I will get some help..

For start I want to ask this:

I've been using Code: [Select]
mysql_fetch_array() for doing loops and populating check-boxes. And everything's working fine.. but what I want is to control the actual loop by clicking buttons. Let's say first time a while-do is run, my check-boxes get populated from the database and every other loop the next data from the table is added.. pretty straightforward.
I want to be able to populate once, then click "next" and the new data to be added and so on..
Code: [Select]
<?php
$tema = mysql_query("SELECT * from questions")or die(mysql_error());

function answer1($string)
{
$string1 = explode("/", $string);
echo $string1[0];
}
function answer2($string)
{
$string1 = explode("/", $string);
echo $string1[1];
}

while ($row=mysql_fetch_array($tema))
{
echo mysql_fetch_array($tema);
$tip=$row["tip"];
if ($tip==2)
{
$id=$row['prasanje_id'];
$question=$row['question'];
$answer=$row['answer'];
?>
   <label> <?php echo $question?></label><br>
   <input type="checkbox"  name="CheckboxGroup1" value="checkbox" id="CheckboxGroup1_0" />
      <?php answer1($tekst) ?></label>
    <label>
      <input type="checkbox"  name="CheckboxGroup1" value="checkbox" id="CheckboxGroup1_1" />
      <?php answer2($tekst) ?></label>
<?php
}
}
?>I want an alternative to the while-do loop..
Is it possible to do this?

Thanks!!

Hello I have the following error:

You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'FROM players WHERE ((NOT inactive_player) AND ((players.Player_Last_Name = 'p' at line 3

I think my error is in the statement below...


    Code: [Select]
echo "1";
$getNewPlayers =
"SELECT players.Player_number,
players.Player_name,
FROM players
WHERE ((NOT inactive_player)
AND ((players.Player_Last_Name = 'player_find%')))
ORDER BY player_name";
$rsNewPlayers = mysql_query($getNewPlayers, $link) or die (mysql_error());
$varNewCount = mysql_num_rows($rsNewPlayers);
echo $varNewCount['Player_name'];


Can you tell me where the error is and how I might go about to fix it?

Thanks,

I was looking at the manual:   http://php.net/manua....precedence.php   And I notice that the parenthesis () operator and print operator are missing from the list. Why so? I would like to know where these operators fall in the precedence and associativity chart.

$pastelink = "<br /><a href='view.php?paste=$lol&language=$language'>$name</a>";
mysql_query("INSERT INTO recent (url) VALUES ('$pastelink')");


That query won't run, however if I do this:


$test = $_POST['name'];
//$pastelink = "<br /><a href='view.php?paste=$lol&language=$language'>$name</a>";
mysql_query("INSERT INTO recent (url) VALUES ('$test')");


It will run, is this because of the single quotes in $pastelink?

& If so, how can I fix it?

Hi, I have been trying to make a page which shows a number of thumbnails, populated by images and text from a database, this I got working perfectly fine, but as I am now trying to make it so users can log in and edit or delete each one, it has all started to go a bit wrong and I was wondering if anyone could spot why?!?

It is currently bringing up this message on the screen:

Error fetching entries from the database, error: Statement: SELECT image,id,projecttitle,projectcode,FROM portfolio ORDER BY id DESC LIMIT 16
You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'FROM portfolio ORDER BY id DESC LIMIT 16' at line 1
Warning: mysql_fetch_assoc() expects parameter 1 to be resource, boolean given in /Users/mdfcows/Sites/atelier/portfolio.php on line 129

I don't quite know how to get it to print out the full nature of the error, but this is the code I am using:
Code: [Select]
<?php
$max_items2 = 16; /* max number of news items to show */

require_once('config.php');
$db2 = mysql_connect (DB_HOST,DB_USER,DB_PASSWORD);
if(!$db2) {
die('Failed to connect to server: ' . mysql_error());
}
mysql_select_db (DB_DATABASE,$db2);

function displayNews($all2 = 0) {
    global $db2, $max_items2;
    
    if ($all2 == 0) {
        /* query for news up to $max_items */
        $query9 = "SELECT image,id,projecttitle,projectcode," . 
                 
                 "FROM portfolio ORDER BY id DESC LIMIT $max_items2";
    } else {
        /* query for all news */
        $query9 = "SELECT image,id,projecttitle,projectcode," . 
                 
                 "FROM portfolio ORDER BY id DESC";
    }
    $result9 = mysql_query($query9) or print("<p>Error fetching entries from the database, error: " . "Statement: " . $query9 . "</p>" . mysql_error());


    while ($row9 = mysql_fetch_assoc ($result9)) {
        
        $title = htmlentities ($row9['projecttitle']);
        $news = nl2br (strip_tags ($row9['projectcode'], '<a><b><i><u>'));
$image = $row9['image'];
$id = $row9['id'];
        
        /* display the data */
?>
<div class="boxgrid captionfull">
            <a id="<?php echo $id ?>"
           
<a class='visit' href="project.php?id=<?php echo $news ?>">
               
                <?php echo $image;

                if(strstr($image, 'jpg') or (strstr($image, 'png')) or (strstr($image, 'gif')) or (strstr($image, 'bmp')) or (strstr($image, 'jpeg')) ) {
echo "<img class='cpimg' src='images/portfolio/$image' alt='' />";
}else {
echo "";}
?>"></a>
               
               
                <div class="cover boxcaption" style="top: 122px; ">
<p align="left"><?php echo $title ?></p>
</div>
                </div>
        <?php

//Check whether the session variable SESS_MEMBER_ID is present or not

if(isset($_SESSION['SESS_MEMBER_ID']) || (!trim($_SESSION['SESS_MEMBER_ID']) == '')) {
echo "<form class='editbtn' action='editportfolio.php' method='POST'>";
echo "<input type='hidden' name='idf' value='$id' />";
echo "<input src='images/editbtn.png' type='image' value='Edit' />";
echo "</form>";
echo "<form class='editbtn' action='deletportfolio.php' method='POST'>";
echo "<input type='hidden' name='ide' value='$id' />";
echo "<input src='images/delbtn.png' type='image' value='Delete' />";
echo "</form>";
} else {
echo "";
}



    }
    
   
}

/* this is where the script decides what do do */

echo "\n";
switch($_GET['action']) {

    case 'all':
        displayNews(1);
        break;
    default:
        displayNews();
}
echo "\n";
?>

<?php
//Check whether the session variable SESS_MEMBER_ID is present or not
if(isset($_SESSION['SESS_MEMBER_ID']) || (!trim($_SESSION['SESS_MEMBER_ID']) == '')) {
echo "<span class='show_all'>";
echo "<a class='show' href='admincp.php'>&nbsp;&nbsp;Admin</a>";
echo "</span>";
echo "<span class='show_all'>";
echo "<a class='show' href='logout.php'>&nbsp;Logout</a>";
echo "</span>";
} else {
echo "";
}
?>

with the line, " while ($row9 = mysql_fetch_assoc ($result9)) {"   being line 129

any help would be much appreciated!

Thank you, Martin

I am trying to use this: http://php.net/manual/en/function.xml-parse-into-struct.php to parse this:

Code: [Select]
<?xml version="1.0" encoding="utf-8"?>
<PaymentNotification xmlns="http://">
  <PaymentMethod>card</PaymentMethod>
<Hash>12345KKLS</Hash>
<Payments>
    <Payment>
      <PaymentID>709750ba-b9b6-44c4-9812</PaymentID>
      <Amount>70</Amount>
      <Currency>USD</Currency>
      <Date>2011-05-11T07:41:44.957</Date>
      <StatusID>4</StatusID>
    </Payment>
    <Payment>
      <PaymentID>e0c66bae-c423-43c6-b896</PaymentID>
      <Amount>50</Amount>
      <Currency>USD</Currency>
      <Date>2011-05-11T07:42:13.55</Date>
      <StatusID>2</StatusID>
    </Payment>
  </Payments>
</PaymentNotification>

...but can't work out which numbers to use. I only need to grab the payment ID where the statusID is 4 (for each one as could be 1 or more per xml message).

It's very complicated http://php.net/manual/en/function.xml-parse-into-struct.php

Hi,

I'm just trying out some basic code and playing around with passing variables by reference and i was reading this on the php manual at this page http://php.net/manual/en/language.references.pass.php :


No other expressions should be passed by reference, as the result is undefined. For example, the following examples of passing by reference are invalid:

<?php
function foo(&$var)
{
    $var++;
}
function bar() // Note the missing &
{
    $a = 5;
    return $a;
}
foo(bar()); // Produces fatal error since PHP 5.0.5

foo($a = 5); // Expression, not variable
foo(5); // Produces fatal error
?>


So, i decided to try it out myself like i always do, and i noticed that i'm not getting an error when i do foo(bar()); i.e calling bar() without the & in the function declaration. Infact it works perfectly fine and returns an incremented $a after its passed to foo(). Likewise foo($a = 5); also works great and returns an incremented $a after being passed to foo(). Is this  a mistake in the manual or am i missing something?

Running PHP 5.3.2-1ubuntu4.5

I got a question im using izabi for me im one who loves the software. But there some quirks that they forgot to add when making the mail system. I was wondering how it would be possible to code in a peice of php where it says read after someone read the email. If you need a copy of the mail mail script let me know.

I have been looking at this code most of the morning and do not have a clue what is wrong with the code. I am hoping its not a stupid mistake, can someone please help me out? thank you   

 
<title>Inputing Travel Detials</title>
 
<header>
  <h1 align="center"> Adding Travel Detials </h1>
  
 
  <body>
    <p>  <center><img  src="cyberwarfareimage1.png" alt="Squadron logo" style="width:200px;height:200px" style="middle"></center>
        <table border="1">
          <tr>
            <td><a href="index.php"> Home Page </a></td>
            <td><a href="administratorhomepage.html">Administrator Home Page </a></td>
            <td><a href="viewhomepage.html">View Home Page </a></td>
            <td><a href="Inputhomepage.html">Input Home Page </a></td>
            <td><a href="traveldetials.html">Enter More Travel Detials </a></td>
        </table>
    </p>
 
 
<?php
 
include "connection.php";
 
$Applicant_ID = $_POST["Applicant_ID"];
$Method_Of_Travel = $_POST["Method_Of_Travel"];
$Cost = $_POST["Cost"];
$ETA = $_POST["ETA"];
$Main_Gate_Advised = $_POST["Main_Gate_Advised"];
 
$query = ("UPDATE `int_board_applicant` SET `Method_Of_Travel`=`$Method_Of_Travel', `Cost`=`$Cost', `ETA`='$ETA', `Main_Gate_Advised`='$Main_Gate_Advised' WHERE `Applicant_ID`='$Applicant_ID'");
   
 
$result = mysqli_query($dbhandle, $query) 
    or die(mysqli_error($dbhandle));
 
if($result){ echo "Success!"; }
 
  else{ echo "Error."; }
 
 
// successfully insert data into database, displays message "Successful".
 if($query){
  echo "Successful";
}
 
  else {
  echo "Data not Submitted";
}
 
 
//closing the connection
   mysqli_close($dbhandle)
   
 
 
 
 
?>

Ok this is puzzleing. I am geting "Could not delete data: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '1' at line 1". but its is deleting the entry that needs to be removed. The "1" is the entry. Just not sure what is causing the error. I do have another delete php but I have put that on the back burning for the time being.     <?php

         $con = mysqli_connect("localhost","user","password","part_inventory");
    // Check connection
if (mysqli_connect_errno()) {
  printf("Connect failed: %s\n", mysqli_connect_error());
    exit();
} else {
    
    $result = mysqli_query($con, "SELECT * FROM amp20 ");
    
    $amp20ptid = $_POST['amp20ptid'];                // escape variables for security
    $amp20ptid = mysqli_real_escape_string($con, $_POST['amp20ptid']);
    
    mysqli_query($con, "DELETE FROM amp20 WHERE amp20ptid = '$amp20ptid'");
      
    
if (!mysqli_query($con, $amp20ptid));

{
 die('Could not delete data: ' . mysqli_error($con));    
}
 echo "Part has been deleted to the database!!!\n";
    mysqli_close($con);
}
?>

Hi guys   I have this code below and all works fine when submitting this online application apart from when someone types either ' # & into one of the comment fields in which it throws up the error. Have tried various fixes from across the internet but no joy. Can anyone offer suggestions?   <?php $con = mysql_connect("localhost:3306","root","password"); if (!$con)   {   die('Could not connect: ' . mysql_error());   } mysql_select_db('sfapp', $con); $sql="INSERT INTO 'sfapp' ('surname_add','forename_add','dob_add','hometele_add','mobiletele_add','homeadd_add','siblings_add','schoolname_add','headname_add','schooladd_add','schooltele_add','schoolem_add','alevel_add','personstate_add','nameprovided_add','pe_add','se_add','PredGrade_Art','PredGrade_AScience','PredGrade_BusStudies','PredGrade_Electronics','PredGrade_EnglishLang','PredGrade_EnglishLit','PredGrade_French','PredGrade_German','PredGrade_Geog','PredGrade_Graphics','PredGrade_History','PredGrade_Maths','PredGrade_SepScience','PredGrade_ProductDesign','PredGrade_Spanish','PredGrade_Other','Gender_Male','Gender_Female','Sub_EnglishLit','Sub_Maths','Sub_FurtherMaths','Sub_Biology','Sub_Chemistry','Sub_Physics','Sub_French','Sub_German','Sub_Spanish','Sub_Geography','Sub_History','Sub_RE','Sub_FineArt','Sub_Business','Sub_Computing','Sub_GlobPersp','Sub_DramaAndTheatre','Sub_PE','Sub_Dance','Sub_Politics','Sub_Psychology','Sub_Sociology','readprospect_chk','Sib_Yes','Sib_No','Current_Student_Yes','Current_Student_No','I_Understand_chk','Current_Education_chk','Local_Care_chk','Staff_Cwhls_chk','Sub_Film')   VALUES ('$_POST[surname_add]','$_POST[forename_add]','$_POST[dob_add]','$_POST[hometele_add]','$_POST[mobiletele_add]','$_POST[homeadd_add]','$_POST[siblings_add]','$_POST[schoolname_add]','$_POST[headname_add]','$_POST[schooladd_add]','$_POST[schooltele_add]','$_POST[schoolem_add]','$_POST[alevel_add]','$_POST[personstate_add]','$_POST[nameprovided_add]','$_POST[pe_add]','$_POST[se_add]','$_POST[PredGrade_Art]','$_POST[PredGrade_AScience]','$_POST[PredGrade_BusStudies]','$_POST[PredGrade_Electronics]','$_POST[PredGrade_EnglishLang]','$_POST[PredGrade_EnglishLit]','$_POST[PredGrade_French]','$_POST[PredGrade_German]','$_POST[PredGrade_Geog]','$_POST[PredGrade_Graphics]','$_POST[PredGrade_History]','$_POST[PredGrade_Maths]','$_POST[PredGrade_SepScience]','$_POST[PredGrade_ProductDesign]','$_POST[PredGrade_Spanish]','$_POST[PredGrade_Other]','$_POST[Gender_Male]','$_POST[Gender_Female]','$_POST[Sub_EnglishLit]','$_POST[Sub_Maths]','$_POST[Sub_FurtherMaths]','$_POST[Sub_Biology]','$_POST[Sub_Chemistry]','$_POST[Sub_Physics]','$_POST[Sub_French]','$_POST[Sub_German]','$_POST[Sub_Spanish]','$_POST[Sub_Geography]','$_POST[Sub_History]','$_POST[Sub_RE]','$_POST[Sub_FineArt]','$_POST[Sub_Business]','$_POST[Sub_Computing]','$_POST[Sub_GlobPersp]','$_POST[Sub_DramaAndTheatre]','$_POST[Sub_PE]','$_POST[Sub_Dance]','$_POST[Sub_Politics]','$_POST[Sub_Psychology]','$_POST[Sub_Sociology]','$_POST[readprospect_chk]','$_POST[Sib_Yes]','$_POST[Sib_No]','$_POST[Current_Student_Yes]','$_POST[Current_Student_No]','$_POST[I_Understand_chk]','$_POST[Current_Education_chk]','$_POST[Local_Care_chk]','$_POST[Staff_Cwhls_chk]','$_POST[Sub_Film]')"; if (!mysql_query($sql,$con))   {   die('Error: ' . mysql_error());   }   ?> <?php //if "email" variable is filled out, send email   if (isset($_REQUEST['pe_add']))  {     //Email information     $admin_email = $_REQUEST['pe_add'];   $forename = $_REQUEST['forename_add'];   $email = "autoreply@testing.com";   $subject = "Application";   $desc =   "Dear $forename   Thank you for submitting your online application, we will be in touch shortly. " ;       //send email   mail($admin_email, "$subject", "$desc", "From:" . $email);     //Email response   echo "Thank you for contacting us!";   }     //if "email" variable is not filled out, display the form   else  { ?> If you are seeing this, you need to go back and fill out the Personal Email section! <?php   }   header("location:complete.php"); mysql_close($con) ?>     Thanks in advance.