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PHP - Javascript Function And Php
Hi
I am using the following PHP code to create a table for a form
<tr><td><img src="images/gate_<?php echo $rider_row['colour'];?>.png"/> <input name="id[]" type="hidden" value="<?php echo $rider_row['id'];?>"/></td><td><input readonly="readonly" name="rider[]" value="<?php echo $rider_row['rider_name'];?>" class="txtfield"/><br /> <select name="substitute[]" class="txtfield" style="display:none"> <option value="">-----------------</option> <?php foreach($reserves as $key=> $value): echo '<option value="'.$value.'">'.$value.'</option>'; //close your tags!! endforeach; ?> </select></td><td><select name="points[]" class="txtfield" onchange="test();"> <option value="">-----------------</option> <?php foreach($scoring as $key=> $value): echo '<option value="'.$key.'">'.$value.'</option>'; //close your tags!! endforeach; ?> </select><br/> <select name="subpts[]" class="txtfield" style="display:none"> <option value="">-----------------</option> <?php foreach($scoring as $key=> $value): echo '<option value="'.$key.'">'.$value.'</option>'; //close your tags!! endforeach; ?> </select> </td></tr>On changing the value in the field called points[], if certain values are selected then two other fields are to be displayed, I am using the following function
<script>
function test() {
if (document.getElementByName('points[]').value == 'F2 || E || N') {
document.getElementByName('substitute[]').style.display = '';
document.getElementByName('subpts[]').style.display = '';
} else {
document.getElementByName('substitute[]').style.display = 'none';
document.getElementByName('subpts[]').style.display = 'none';
}
}</script>
I am getting an error saying getElementByName is not a function, I know I can do this by getElementById, but the fields do not have ID and not sure how I can give them a unique ID when echoing them from the database.
If someone could just give me some pointers I would be very grateful
Similar TutorialsHi all, I want to call a javascript function from a php function like this: public function Buscar() { $HoraInicio = $_POST['edtHoraInicio']; $HoraFin = $_POST['edtHoraFin']; $FechaInicio = $_POST['edtFec1']; $FechaFin = $_POST['edtFec2']; $FechaMax = $FechaFin." ".$HoraFin.":00"; $FechaMin = $FechaInicio." ".$HoraInicio.":00"; $_GET["FechaMax"] = $FechaMax; $_GET["FechaMin"] = $FechaMin; echo $FechaMin; echo "<script language=javascript>alert('Hi.')</script>"; } but the function Buscar never show the alert but shows the $FechaMin I hopu u guys can help me out with this probem Thanks, Siddhartha Hi Everyone. I'm working on a form, that allows the user to select the country / county / area where they are from. I am doing this using: - mysql database store the locations in - PHP OOP, to pull this information from the database - AJAX/Javascript to only show the next dropdown, once the first dropdown has been selected. Example: select country then the county dropdown will appear, select county then the area/town will appear. However, the first drop down for country is placed directly on to the page. So the javascript works fine. but the second dropdown is placed in to a PHP function, and the javascript seems to no longer want to work. CODE: Code: [Select] //////////////// CODE FOR COUNTRY /////////// if(isset($_REQUEST['country'])) { echo ' <div class="labelleft">County / State:</div> <div class="fieldleft"> <div > <select name="county" id="county" onchange="javascript:AJAXQuery("lib/search.php?town="+this.value, "tw", "")"> <option value="0">Select County</option> <option value="0">-------</option>'; $countyList = Area_county::find_country_id($_REQUEST['country']); foreach($countyList as $countyLists){ $county_id = $countyLists->id; $county_list = $countyLists->county; echo '<option value="'.$county_id.'">'.ucwords($county_list).'</option>'; } echo ' </select> </div> </div> <div class="clear"></div>'; } Any ideas? Thanks Code: [Select] <?php class My { public function disp() { echo "ehllo"; } } ?> <html> <head> <script type="text/javascript"> function displaymessage() { document.write(My.disp()); } </script> </head> <body> <form> <input type="button" value="Click me!" onclick="displaymessage()" /> </form> </body> </html> HEllo I wanted to know wheter php function can be call in js functions. Please Help. Hi guys, I am having a tough time executing the code inside the javascript. Everything is working fine with the Php code and I am able to see the output of variable myValue too.. But the problem is nothing is being executed inside the javascript..Not even the first statement of the javascript..When I look at the output sent by the HTML to the browser, the output is what is listed after this code which is right at the bottom of this page. Please advise. Code: [Select] <html> <head> <title>AES (Rijndael) Encryption Test in JavaScript</title> <script src="aes-enc.js" type="text/javascript" language="JavaScript"></script> <script src="aes-dec.js" type="text/javascript" language="JavaScript"></script> <script src="aes-test.js" type="text/javascript" language="JavaScript"></script> <script type="text/javascript"> function doDecryption() { document.println("Inside Javascript"); var ct, key; var theForm = document.forms[0]; blockSizeInBits=128; keySizeInBits = theForm.keySize[theForm.keySize.selectedIndex].value; if (theForm.key.value.toLowerCase().indexOf("0x") == 0) theForm.key.value = theForm.key.value.substring(2); if (theForm.ciphertext.value.toLowerCase().indexOf("0x") == 0) theForm.ciphertext.value = theForm.ciphertext.value.substring(2); if (theForm.key.value.length*4 != keySizeInBits) { alert("For a " + keySizeInBits + " bit key, the hex string needs to be " + (keySizeInBits / 4) + " hex characters long."); if (theForm.key.select) theForm.key.select(); return; } if (theForm.ciphertext.value.length*4 != blockSizeInBits) { alert("For a " + blockSizeInBits + " bit block, the hex ciphertext string needs to be " + (blockSizeInBits / 4) + " hex characters long."); if (theForm.ciphertext.select) theForm.ciphertext.select(); return; } ct = hex2s(<?php echo $myValue; ?>); document.println("Inside Javascript"); document.write(ct); // key = hex2s(theForm.key.value); // theForm.plaintext.value = byteArrayToHex(rijndaelDecrypt(ct, key, "ECB")); } </script> </head> [syntax=php] <?php mysql_connect("localhost","root",""); mysql_select_db("encryption") or die(mysql_error()); $userId = $_POST['userId']; if (($_SERVER['REQUEST_METHOD'] == 'POST') && ($_POST['key'] == "")) { $query = mysql_query("select * from employee_details where id = '$userId'"); if($row=mysql_fetch_assoc($query)) { echo '<tr>'; foreach($row as $value) echo '<td>'.$value.'</td>'; echo '</tr>'; } else { echo "No rows returned"; }} else if (($_SERVER['REQUEST_METHOD'] == 'POST') && ($_POST['key'])) { $columname = "ciphertext"; $tablename = "employee_details"; function getField($field, $tbl_name, $condition) { $result = mysql_query("SELECT $field FROM $tbl_name WHERE id = ".$condition); return @mysql_result($result, 0); } $myValue = getField($columname,$tablename,$userId); echo "$myValue"; //doDecryption(); } echo '<script type="text/javascript"> doDecryption(); </script>'; echo "whats happening"; ?> </body> </html> [/syntax] <body> CODE THAT IS SENT AS HTML OUTPUT TO THE BROWSWER Code: [Select] <!doctype HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <title>AES (Rijndael) Encryption Test in JavaScript</title> <script src="aes-enc.js" type="text/javascript" language="JavaScript"></script> <script src="aes-dec.js" type="text/javascript" language="JavaScript"></script> <script src="aes-test.js" type="text/javascript" language="JavaScript"></script> <script type="text/javascript" language="JavaScript"> function doDecryption() { document.alert("Inside Javascript"); var ct, key; var theForm = document.forms[0]; blockSizeInBits=128; keySizeInBits = theForm.keySize[theForm.keySize.selectedIndex].value; if (theForm.key.value.toLowerCase().indexOf("0x") == 0) theForm.key.value = theForm.key.value.substring(2); if (theForm.ciphertext.value.toLowerCase().indexOf("0x") == 0) theForm.ciphertext.value = theForm.ciphertext.value.substring(2); if (theForm.key.value.length*4 != keySizeInBits) { alert("For a " + keySizeInBits + " bit key, the hex string needs to be " + (keySizeInBits / 4) + " hex characters long."); if (theForm.key.select) theForm.key.select(); return; } if (theForm.ciphertext.value.length*4 != blockSizeInBits) { alert("For a " + blockSizeInBits + " bit block, the hex ciphertext string needs to be " + (blockSizeInBits / 4) + " hex characters long."); if (theForm.ciphertext.select) theForm.ciphertext.select(); return; } ct = hex2s(<br /> <b>Notice</b>: Undefined variable: myValue in <b>C:\wamp\www\AES4U\Decryptedresults.php</b> on line <b>41</b><br /> ); document.write("Inside Javascript"); document.write(ct); // key = hex2s(theForm.key.value); // theForm.plaintext.value = byteArrayToHex(rijndaelDecrypt(ct, key, "ECB")); } </script> </head> <body> <br /> <b>Notice</b>: Undefined index: userId in <b>C:\wamp\www\AES4U\Decryptedresults.php</b> on line <b>58</b><br /> // Do not worry about this notice because teh value has not been posted it is not able find this value. </body> This topic has been moved to JavaScript Help. http://www.phpfreaks.com/forums/index.php?topic=316624.0 Hello! This bit of code actually does work, I just want to check that this is the best/proper/most efficiant way of doing it. Basically i'm calling a PHP function that uses the javascripts prompt function, then returning the value that the user types in back to PHP. Most probably easier to show you. Code: [Select] <?php //prompt function function prompt($prompt_msg){ echo("<script type='text/javascript'> var answer = prompt('".$prompt_msg."'); </script>"); $answer = "<script type='text/javascript'> document.write(answer); </script>"; return($answer); } //program $prompt_msg = "Please type your name."; $name = prompt($prompt_msg); $output_msg = "Hello there ".$name."!"; echo($output_msg); ?> That is the entire code, I just want to know if this is the proper way to do something like this (using javascript and PHP together) thanks guys! This topic has been moved to Ajax Help. http://www.phpfreaks.com/forums/index.php?topic=346692.0 I have this function which is javascript and I need to convert it to php.. Code: [Select] function US2dec(myUS) { if (myUS.toLowerCase() == 'even') { myUS = '100'; } var myDec; myUS = parseFloat(myUS); if (Math.abs(myUS) < 100 || isNaN(myUS)) { myDec = NaN; } else if (myUS > 0) { myDec = 1 + myUS / 100; } else { myDec = 1 - 100 / myUS; } return myDec.toFixed(8); } I came up with this php version and it seems to work but I'm no expert with math functions.. I was hoping somebody who's a bit more familiar with these functions could check it over quick.. Code: [Select] function US2dec($myUS) { if (strtolower($myUS) == 'even') { $myUS = 100; } $myDec = 0; $myUS = floatval($myUS); if (abs($myUS) < 100 || !is_numeric($myUS)) { $myDec = 0; } else if ($myUS > 0) { $myDec = 1 + $myUS / 100; } else { $myDec = 1 - 100 / $myUS; } return number_format($myDec,8); } Thanks!! I'm writing a PHP script to pull information from another website which I don't own. That website uses javascript for pagination, splitting data across 3 pages. They also have a function to list all their data on one page but it requires clicking the link on the page which runs a javascript AJAX call. I want to pull all that data with PHP but how do I emulate the Javascript AJAX call in my code so I can get all that data instead of just the first page? Even if I could just call that function and then parse the information it returns to me. Thanks.
How can i call javascript function from php code?? (Kindly Help) As an example (idea) Code: [Select] <script language="javascript"> function divclose() { alert("I am an alert box!"); } </script> <? echo "<SCRIPT LANGUAGE='javascript'>divclose();</SCRIPT>"; ?> This topic has been moved to JavaScript Help. http://www.phpfreaks.com/forums/index.php?topic=348942.0 Hi All,
My page contains a JS function that enables to print the content of a DIV, and contains also a jQuery Autocomplete textbox that does not belong to that DIV.
Here is the JS for printing the div
function printContent(el){
var restorepage = document.body.innerHTML;
var printcontent=document.getElementById(el).innerHTML;
document.body.innerHTML = printcontent;
window.print();
document.body.innerHTML = restorepage;
}
The HTML attached to it is
<div id="div1">DIV 1 content...
</div> <button onclick="printContent('div1')">Print Content</button>
If the user clicks the button to print the content of the DIV, they cannot afterwards make use of the Autocomplete textbox.
It seems the issue occurs with any kind of jQuery UI, not just autocomplete.
In this case, the HTML of the Autocomplete is
<div class="ui-widget">
<label for="tags">Tags: </label>
<input id="tags" />
</div>
and the script
$(function () {
var availableTags = [
"ActionScript",
"AppleScript",
"Asp",
"BASIC",
"C",
"C++",
"Clojure",
"COBOL",
"ColdFusion",
"Erlang",
"Fortran",
"Groovy",
"Haskell",
"Java",
"JavaScript",
"Lisp",
"Perl"
];
$("#tags").autocomplete({
source: availableTags,
minLength: 0,
delay: 0
});
});
jquery-ui-1.10.3.custom.css, jquery-1.9.1.js and jquery-ui-1.10.3.custom.js are used.
Any idea of how to keep the jQuery UI functional after the div-printing JS function has been used ?
Thanks for your help.
This topic has been moved to JavaScript Help. http://www.phpfreaks.com/forums/index.php?topic=359130.0 Hello all, I have some piece of code that is nested like this $variable = 'This is a global argument'; function parentFunction($variable) { function childFunction() { echo 'Argument of the parent function is '.$GLOBALS['variable']; } childFunction(); } parentFunction(5); What I want to know is - Is there a way to access a variable from the parent function without passing arguments to the child function? (Something like how classes have parent::?). I don't want to use $GLOBALS because it might cause some variable collision, and I didn't want to pass arguments because incase I decide to change the arguments in the parent function I'd have to do it in the child function aswell. From my searching around in the Internet it seems like this is not possible, but if theres a slight chance that there might be something out there, i'm willing to give it a shot . Thanks in advance Question 1) Is the only and proper way to call a parent function "parent::function()"? Are there other/better ways from within a child function? Question 2) What are the deciding factors for when to make a function or attribute static? How do you make that decision? Assuming 5.3... Thanks. I need to call usort from a class function, and I'm puzzled about how to define the comparison function. I've tried to define the comparison function in the same class, but I can't get usort to call it. I found one hint that it will work if I make the comparison function static, but I tried that, and it didn't work for me. If I define the comparison function outside the class, it won't have access to object properties that it needs to operate. The only solution I can think of is to define the comparison function outside the class and put the object properties it needs in globals. Is there a cleaner way to do this? I have this function completely written in my class file that I am working on. The point to this function is to be able to check the login of a user or administrator for either of the control panels associated with my site. It will check the session intime as well as the page / module referenced. Once it passes all those checks, it will check and ensure the emailaddress/password stored in the current session still holds true and the account is still active... if the account is still active it will update the lastActivity as well as update all of the session variables with what is currently in the database. What I am looking for is basically a look at the function, see if it looks good.. If there is any part to it that could create security holes for the site just off the login function itself... Usage: $q->validUser($_SESSION['user'], $_mod); <?php function validUser($sess, $p) { if ($sess['inTime'] == '' && $p != 'login' && $p != 'logout') { session_destroy(); $login = '0'; $_int = ''; return $login; } else if ($sess['inTime'] < time()-3600 && $p != 'login') { $sess['inTime'] = ''; session_destroy(); $this->check_login($sess, $p); } else { $this->user = $sess['emailAddress']; $this->pass = $sess['password']; $login = $this->sql_query("SELECT * FROM users WHERE emailAddress = '".$this->user."' AND password = '".$this->pass."' AND status = '1' LIMIT '1'"); if ($login = $this->sql_numrows($login) < 1) { $sess['inTime'] == ''; session_destroy(); $login = '0'; } else { // logged in, lets update the database for last_activity AND the session. $this->sql_query("UDATE users SET lastActivity = '".now()."' WHERE emailAddress = '".$this->user."'"); $login = $this->sql_query("SELECT * FROM users WHERE emailAddress = '".$this->user."' AND password = '".$this->pass."' AND status = '1' LIMIT '1'"); $login = mysql_fetch_assoc($login); foreach ($login as $key => $value) { $sess[$key] = $value; } $sess['inTime'] = time(); $login = '1'; } return $login; } } ?> That is the main function, sql_query and sql_numrows is: <?php function sql_query($query = "", $transaction = FALSE) { unset($this->query_result); if ($query != "") { $this->num_queries++; if ($transation == BEGIN_TRANSACTION && !$this->in_transation) { $result = mysql_query("BEGIN", $this->db_connect_id); if (!$result) { return false; } $this->in_transaction = TRUE; } $this->query_result = mysql_query($query, $this->db_connect_id); } else { if ($transaction == END_TRANSACTION && $this->in_transaction ) { $result = mysql_query("COMMIT", $this->db_connect_id); } } if ($this->query_result) { unset($this->row[$this->query_result]); unset($this->rowset[$this->query_result]); if ($transaction == END_TRANSACTION && $this->in_transaction ) { $this->in_transaction = FALSE; if (!mysql_query("COMMIT", $this->db_connect_id)) { mysql_query("ROLLBACK", $this->db_connect_id); return false; } } return $this->query_result; } else { if ($this->in_transaction ) { mysql_query("ROLLBACK", $this->db_connect_id); $this->in_transaction = FALSE; } return false; } } function sql_numrows($query_id = 0) { if(!$query_id) { $query_id = $this->query_result; } return ($query_id) ? mysql_num_rows($query_id) : false; } ?> Any insight that can help to benefit these functions would be appreciated. When I put this chunk of code into it's own function: function fetch_all ($dbc, $query) { include ('knuffix_list_func.php'); pagination_start ($dbc, $query); $offset = $pag_array[0]; $rows_per_page = $pag_array[1]; $query = $query . " LIMIT $offset, $rows_per_page"; echo "test query: " . $query; knuffix_list ($query, $dbc); pagination_end ($pag_array); } And when I echo out the query as you can see in the example, then I notice that the variables $offset and $rows_per_page never get appended. I set the variable $pag_array to a global inside the function pagination_start(). It usually works when I DON'T wrap a function around this chunk of code, but if I do wrap a function around everything then the global suddenly won't work anymore. Btw, this also won't work if I wrap a function around the function DECLARATIONS. Any ideas, how I could make it work? I want to define a function instead of repeating query in all my php pages. I call a function by passing an $id value and from that function i have to get all the info related to that id, like name, description and uom.
I am trying to do this, but i dont know how to get these values seperately.
here is my function
function items($item_id)
{
$details = array();
$result = mysql_query("select item_id, name, uom, description from items where item_id=".$item_id."") or die (mysql_error());
while($row = mysql_fetch_array($result))
{
$details[] = array((stripslashes($row['name'])), (stripslashes($row['uom'])), (stripslashes($row['description'])));
}
return $details;
}
and i call my function like this
$info = items($id);Can somebody guide me in this im using a function which connects to a db called 'comments' and then inside that function i again called another function that will connect to the db 'main' to get avatars.... but as i put Code: [Select] mysql_select_db("main") or die(mysql_error()); on the new function, the original function stops to fetch rows. i tried to remove "mysql_select_db("main") or die(mysql_error());" and used the new function to return some text only and it worked, so i guess the connection to the db was the problem... i tried doing Code: [Select] mysql_query("SELECT * FROM main.avatar INNER JOIN main.list ON main.avatar.title=main.list.id WHERE main.avatar.page_id='$id'"); but it also didnt work |
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