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PHP - I Need A Little Help Understanding Syntax.
So I have been around the net a few times reading tutorials, watching vids as I try to teach my self php. I have come across a few items that I am having trouble understanding.
The first is the use of the % symbol. For example I commonly see the % used in generating random strings of characters. Here is piece of the code I used to generate a random string. What is the purpose of % in this statement. if ($alt == 1) { $rndPKID .= $consonants[(rand() % strlen($consonants))]; $alt = 0; } else { $rndPKID .= $vowels[(rand() % strlen($vowels))]; $alt = 1; } The second is the use of the & or as it is better known. The ampersand symbol. I commonly see it used when declaring a function. function newfunction($var1, &$var2){ //Do Stuff Here. } Can anyone help me understand those 2 symbols purpose and usage in php? Similar TutorialsI 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.
Hi.. I create mysql syntax for query testing before i input to my php code here is my mysql code: Code: [Select] set @t = 0; set @rqty=31968; SELECT LOT_CODE as code, DATE_ENTRY, CASE WHEN @t+OUTPUT_QTY > @rqty THEN @rqty -@t ELSE OUTPUT_QTY END as qty, @t := @t + d.OUTPUT_QTY as cumulative FROM dipping d WHERE SUBSTR(LOT_CODE, 9,4) = 'P28' AND (@t < @rqty); and i attach the sample output of the above query. Now that query test is work i will input that code to my php codes. $sql = "SELECT SKUCode, Materials, Comp, Qty FROM bom WHERE SKUCode = '$SKUCode'"; $res = mysql_query($sql, $con); ($row = mysql_fetch_assoc($res)); $Materials = $row['Materials']; $Qty = $row['Qty']; $Comp = $row['Comp']; //P28 //-----Compute Req Qty and Save to table---// $ReqQty = $Qty * $POReq; // 31968 $sql = "UPDATE bom SET ReqQty = '$ReqQty' WHERE SKUCode = '$SKUCode' AND Materials = '$Materials'"; $resReqQty = mysql_query($sql, $con); $t = 0; $sql = "SELECT LOT_CODE as code, DATE_ENTRY, CASE WHEN $t+OUTPUT_QTY > $ReqQty THEN $ReqQty -$t ELSE OUTPUT_QTY END as qty, $t := $t + d.OUTPUT_QTY as cumulative FROM dipping d WHERE SUBSTR(LOT_CODE, 9,4) = '$Comp' AND ($t < $ReqQty)"; when I echo the query: I got this: SELECT LOT_CODE as code, DATE_ENTRY, CASE WHEN 0+OUTPUT_QTY > 31968 THEN 31968 -0 ELSE OUTPUT_QTY END as qty, 0 := 0 + d.OUTPUT_QTY as cumulative FROM dipping d WHERE SUBSTR(LOT_CODE, 9,4) = 'P28' AND (0 < 31968) then I run it to the sql and I got an error: Error Code : 1064 You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ':= 0 + d.OUTPUT_QTY as cumulative FROM dipping d WHERE SUBSTR(LOT_CODE, 9,4) = '' at line 1 (0 ms taken) Any help is highly appreciated Thank you so much I'm attempting to convert a huge project I made with mysql to PDO. I have many cases where I would use a WHILE statement to return a query array. Code: [Select] while($row= mysql_fetch_array($result)){From what I've seen so far, it looks as though I need to use a foreach statement to do the same task. Code: [Select] foreach ($dbh->query($sql) as $row){ Is that correct? I have a system that I want to change. Hi, can someone help me figure out why the logo div isn't centering? Code: [Select] <?php require_once("functions.php"); ?> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>Untitled Document</title> <style type="text/css"> td { border-top-style: solid; border-right-style: solid; border-bottom-style: solid; border-left-style: solid; border-top-color: #30C; border-right-color: #30C; border-bottom-color: #30C; border-left-color: #30C; } </style> <link href="doggyTreats.css" rel="stylesheet" type="text/css" /> </head> <body> <?php [color=yellow]logo();[/color] navBar(); echo "<div id=\"mainContent\">"; echo "<form action=\"\" method=\"post\" name=\"catalog\">"; DatabaseConnection(); $query = "SELECT * FROM treats"; $result_set = mysql_query($query) or die(mysql_error()); $i = 0; echo "<table>"; while ($row = mysql_fetch_array($result_set)) { echo"<tr><td width=\"2s00px\"><img src=\"{$row['product_pic']}\" /></td><td width=\"200px\">{$row['product_title']}.<br /><br />{$row['product_Description']}.<br /> Price: \${$row['price']}.<br /><br />Quantity <input name=\"quantity\" type=\"text\" size=\"2\" /></td></tr>"; } echo "<tr>"; echo "<td><input name=\"submit\" type=\"button\" value=\"Proceed to Checkout\" />"; echo "</table>"; echo "</form>"; echo "</div>"; footer(); ?> </body> </html> Code: [Select] #navBar { background-color: #060; width: 200px; padding-top: 50px; padding-bottom: 250px; float: left; } #navBar #menu { margin-right: 6px; } .menuOption { background-image: url(assets/bone2a.gif); background-repeat: no-repeat; padding-bottom: 25px; list-style-type: none; height: 20px; padding-top: 26px; text-align: center; } body { background-color: #0089cc; }[color=yellow] #logo { text-align: center; margin-top: 5px; height: 123px; width: 182px; }[/color] #footer { font-style: italic; text-align: center; } .shoppingCart tr th { padding: 5px; } .shoppingCart tr td { padding: 5px; } #mainContent { width: 350px; margin-top: 30px; } Code: [Select] <?php [color=yellow]function logo() { echo "<div id=\"logo\">"; echo "<img src=\"assets/logo.gif\" alt=\"logo\" />"; echo "</div>"; }[/color] function footer() { echo "<div id = \"footer\">"; echo "Auntie Vic\'s Treatery <br />"; echo "PO Box 34092 <br />"; echo "Clermont, IN 46234 <br />"; echo "317-701-0343 <br />"; echo "<a href=\"mailto:auntievics@gmail.com\">Email Us</a>"; echo "</div>"; } function navBar() { echo "<div id = \"navBar\">"; echo "<ul id=\"menu\">"; echo "<li class=\"menuOption\"><a href=\"index.html\">Home</a></li>"; echo "<li class=\"menuOption\"><a href=\"aboutUs.html\">Management Team </a></li>"; echo "<li class=\"menuOption\"><a href=\"treats.html\">Treats </a></li>"; echo "<li class=\"menuOption\"><a href=\"charities.html\">Supported Charities</a></li>"; echo "<li class=\"menuOption\"><a href=\"order.html\">Orders</a></li>"; echo "</ul>"; echo "</div>"; } ?> Code: [Select] $result = mysql_query("SELECT * FROM Chords_Loops_Lyrics ORDER BY MusicFiles_ID ASC"); while($row = @mysql_fetch_array($result)){ $Chords_Loops_Lyrics = array($row['CCL_ID'] => $row['MusicFiles_ID'], $row['Type'], $row['FileName']); } I know I'm doing this wrong, because of the results. How can I assign values to this array, when I do a print r on this, it only spits out the last value. I need to store like 100 of these "chord loops and lyrics" into an array with the values you see in the $row fields. I just can't seem to find how to properly write this in php. I come from a long line of down to earth, hard-up, and linear programmers and I've been introduced to the wonders of web. But now I'm a bit lost. Okay, I know much about programming concepts with experience with C++, C#, and assembly, but I can't seem to tame PHP. I've written some code to act as a sort of framework in the spirit of the M-V-C pattern, but I don't know what's happening to my instantiations! I've been reading up on the help files, documentations, and looking up excellent code, but I still don't know what's happening. I'm totally in the dark. Can someone point me to the light? I create my includes (global variables), and local variables, and even classes, but I seem to lose the instantiation of these objects when I navigate more than three pages from my index. What's happening and how do I avoid this? Hi.
I've been trying to understand the concept of password_hash but so far it has eluded me!
registration
<?php
if(isset($_POST['submit'])){
$name = $_POST['name'];
$email = $_POST['email'];
$password = $_POST['password'];
//$pass_hash = PassHash::hash($_POST['password']);
$hash = password_hash($password, PASSWORD_BCRYPT);
$stmt = $pdo->prepare("INSERT INTO hash_test(name, email, password) VALUES(:name, :email, :password)");
$stmt->execute(array(
':name' => $name,
':email' => $email,
':password' => $hash
));
if ($stmt->rowCount() ==1){
echo "Registration Successful";
}else{
echo "There was a problem taking your request";
}
}
?>
The registration is working fine and all fields are inserted. The problem is when loggin in, its giving me an error : unknown variable which is the $hash. The verify parameter is thus:
password_verify($password, $hash)
I believe the $password is the users password for login, now how/when/where do assign a value to $hash? since in my db i have email(username) password. Do i need to store the hash separately on the db? Can someone please enlighten me more
my login code
<?php
if(isset($_POST['login'])){
$password = $_POST['password'];
$stmt = $pdo->prepare("SELECT email, password FROM hash_test WHERE email=:email AND password=:password");
$stmt->execute(array(
':email' => $_POST['email'],
':password' =>$password
));
//if ($stmt->rowCount() ==1){
if (password_verify($password, $hash)) {
/* Valid */
echo "Right";
} else {
/* Invalid */
echo "wrong";
}
//}
}
?>
THANKS
I need some help understanding the below syntax (the ? and the colon are throwing me) isset($_POST['cardType']) ? $_POST['cardType'] : ''; Thanks for any help on this .. Frank Hi i'm new to the forum and i'm wondering if anyone here could help me out with the problem i'm having. the script i have uses $_SESSION['userid'] = $users['id']; and i'm not exactly sure how to read that .. any information would be helpful. thanks in advance I don't really understand what htmlentities() does and when to use it?! The manual says this... <?php $str = "A 'quote' is <b>bold</b>"; // Outputs: A 'quote' is <b>bold</b> echo htmlentities($str); // Outputs: A &#039;quote&#039; is <b>bold</b> echo htmlentities($str, ENT_QUOTES); ?> 1.) Isn't there a way to print this... Code: [Select] $str = "A 'quote' is <b>bold</b>"; ...as this... Quote A 'quote' is <b>bold</b> That is, WYSIWYG. 2.) When and why would you want this displayed... Quote A 'quote' is <b>bold</b> I am trying to make my code more secure, and I was told to use something like this on all code that comes from the User and needs to be output, but I'm a little lost here... echo ' <div class="userInfo"> <a href="#" class="username"> <strong>' . nl2br(htmlentities($username)) . '</strong> </a>'; Debbie Hi guys Sorry i keep asking noob questions today... I'm working on something that has a user facing image upload facility. So i'm slowly working through a class to make this as secure as possible. One of the tips online is to use the method "is_uploaded_file ( )". According to php.net - "Returns TRUE if the file named by filename was uploaded via HTTP POST. This is useful to help ensure that a malicious user hasn't tried to trick the script into working on files upon which it should not be working--for instance, /etc/passwd. " I'm not one to just use things without understanding why. So how exactly could someone get a script to work on an internal file via a browse/upload facility? Hi.
I haven't done a lot of OOP. Hardly any really. I've had a go at writing a very small class that outputs a greeting depending on what time of day it is. What do the OOP experts here make of it? What do you like, what do you hate? Is there anything I could do to make it more useful?
Here is the code;
class Greeting {
// the __construct didn't do what I originally wanted. Denfine the hour outside the method (I don't know why this is a good/bad idea)
/*
public function __construct()
{
$hour_of_day = date('G');
}
*/
public function callGreetingPhrase()
{
return $this->getGreetingPhrase();
}
// the setter doesn't seem to have a purpose here. I tried using it so that I could pass in a value of my choosing (for testing purposes) can't get it to work though
/*
public function setGreetingPhrase($value)
{
$this->hour_of_day = $value;
}
*/
private function getGreetingPhrase()
{
$hour_of_day = date('G');
if($hour_of_day < 12 ) { // if it's before 12pm
$greeting_phrase = "good morning";
} elseif($hour_of_day >= 12 && $hour_of_day < 18 ) { // if it's after 12pm but before 6pm
$greeting_phrase = "good afternoon";
} else { // what is left over - after 6pm until midnight
$greeting_phrase = "good evening";
}
return $greeting_phrase;
}
}
$greeting = new Greeting;
echo $greeting->callGreetingPhrase();
It annoyed me that I could 't figure out how to use the __constructor here to store the hour. But should that have bothered me?
Can someone maybe explain a bit about the setter that I tried to use setGreetingPhrase. I only put it in because I've seen other Classes with one. Could I use a setter method here for anything useful?
Any feedback appreciated!
Hi All I have a basic login system on my site. How would I go about displaying the current logged in user information from the session Id. its quite confusing..... <?php require 'Mysql.php'; class Membership { function validate_user($un, $pwd) { $mysql = New Mysql(); $ensure_credentials = $mysql->verify_Username_and_Pass($un, ($pwd)); if($ensure_credentials) { $_SESSION['status'] = 'authorized'; header("location: ../selfbuild/Controlpanel.php"); } else return "Please enter a correct username and password"; } function log_User_Out() { if(isset($_SESSION['status'])) { unset($_SESSION['status']); if(isset($_COOKIE[session_name()])) setcookie(session_name(), '', time() - 1000); session_destroy(); } } function confirm_Member() { session_start(); if($_SESSION['status'] !='authorized') header("location: login.php"); } } Just need to display the user name at the moment but am kinda not getting how its done. Do I just need <?php session_start(); echo $un Hello, After a user gets input into my Users table in my database, I'm using lastInsertId() to grab the newly created ID and then enter the newly created ID (along with some other stuff) into a separate table. Could this potentially be a problem? In other words, what happens if 2 users on 2 different computers both sign up a the same time? How will be database know which lastInsertId() to use? Here's my current code: $dbWrite->insert('users', $data); $last_id = $dbWrite -> lastInsertId(); // get the ID that was just created $data = array ('course_id' => $_POST['course_id'], 'user_id' => $last_id); $dbWrite->insert('course_enrollment', $data); // Use that new ID in a different table Perhaps there's a way to combine the steps? Thank you for your thoughts... Hey guys. I have this code which connect me to the database and displays info in the web. However i do not understand a few lines of it. Code: [Select] <?php while ($query = mysql_fecth_assoc($result)) { $field01 = $result['Name']; $field02 = $result['Username']; ?> Can someone try to explain in they're own, simple words? Thank you. Full code. Code: [Select] <?php $dbhost = ""; $dbuser = ""; $dbpass = ""; $db = ""; $connection = mysql_connect($dbhost, $dbuser, $dbpass); mysql_select_db($db, $connection); $query = 'SELECT * FROM users'; $result = mysql_query($query); while ($query = mysql_fecth_assoc($result)) { $field01 = $result['Name']; $field02 = $result['Username']; echo $field01; echo $field02; } ?> can you guys help with this a little bit? i've been in so many companies. I get so sick of this. people throw terms around all the time and a lot of times, at least what I've noticed, is that a lot of people don't even really know what they're talking about. take for instance, this: https://www.php.net/manual/en/class.iterator.php if you consider the link, it is calling the iterator a class. but, in the article it is described as an interface. to me, that's just ridiculous. you see, what's going to happen with that, is that I'm going to go into a meeting next week and some person from india is going to argue with me about ""well, no, a class is not an interface.....yada yada..."", and on and on and on. obviously this is extremely simple, and most CEOs understand that. I've never understood why engineers do not. it's nothing more than a hierarchy. everything is. sooooo.....to start here, does anyone reading this understand what I'm trying to say? This is nothing more than information management, as everything is anyway. That's why it's very simple. at this point, I would think that no one should have to write code anymore, even if the concepts of low code and no code did not exist. code is so patternized anyway, and there are only so many objects on Earth to mimic in the electronic world, is that not why frameworks were created in the first place? let us start there. comments anyone? thanks. Adam Hi All, I'm trying to understand the logic behind this bit of code I found. I (think I) get that it takes an argument which in this case is a number, an checks to see if the array isset, then uses a while loop to loop through the possible values taking each value and placing it into another function which performs some task. What I'm really confused about is how the code is using unset, If I'm correct it's unsetting the incremented value which is the value that should be used in the next iteration, now I know this is not the case, but I don't understand why this is working. I have included the code in the topic and I also wrote a small piece of code to mirror this so I could play around with it in hopes of understanding the logic but it gives me a syntax error in my IDE when I try to unset the incremented value. I know this is probably something really stupid so be kind. <?php define("NUM_0", 0); define("NUM_1", 1); define("NUM_2", 2); define("NUM_3", 3); define("NUM_4", 4); function function_1($position) { static $positions = array(NUM_0, NUM_1, NUM_2, NUM_3, NUM_4,), $index = 0; if (isset($positions[$index])) { while ($position >= $index) { $current_position = $positions[$index]; unset($positions[$index++]); function_2($current_position); } } } function function_2($position) { switch ($position) { case 0: echo '$position equals 0 <br />'; break; case 1: echo '$position equals 1 <br />'; break; case 2: echo '$position equals 2 <br />'; break; case 3: echo '$position equals 3 <br />'; break; case 4: echo '$position equals 4 <br />'; break; } } function_1(NUM_4); [b] [u]output![/u] $position equals 0 $position equals 1 $position equals 2 $position equals 3 $position equals 4 [/b] function test() { static $var_1; $var_1 = 10; if (isset($var_1)) { while ($var_1 >= 0) { $var_2 = $var_1; unset ($var_1++); // syntax error on this line. echo $var_2; } } } test(); ?> |
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