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JavaScript - Getting Data Back From A Php Function
overview:
from my javascript, i call a function in the php block, that function successfully retrieves a value from the database, but when i pass that retrieved value back to the calling function....all is lost somehow. when i test this code by itself, it works fine and gets the correct number. <?php mysql_select_db($database_connFtH, $connFtH); $result = mysql_query("SELECT status_index FROM cpqc_status ORDER BY row_id DESC"); $row_result = mysql_fetch_assoc($result); $index = $row_result['status_index']; echo $row_result['status_index']; echo $index; echo "the value of index is ".$index; ?> however, when i set this same code up as a function to be called upon globally, and to return the value of $index, it all just seems to "not work". <?php function runStatus() { mysql_select_db($database_connFtH, $connFtH); $result = mysql_query("SELECT status_index FROM cpqc_status ORDER BY row_id DESC"); $row_result = mysql_fetch_assoc($result); $index = $row_result['status_index']; return ($index); } //end function runStatus() ?> the calling function, with an alert box to check if the value of $index was passed down accurately <script type="text/javascript"> var x = runStatus(); alert(x); </script> all i want to do is call a server-script function that deals with the database and gets me a value out of the database, and pass that value back to the calling function. can't figure out what is wrong. the "return($index)" should send back the value of $index. the call to that function should receive back a value and assign it to "x". and the alert(x) should spit it out with no problem. but......something is wrong and it won't work. any ideas what is wrong? it is my understanding that a function inside the php determants can be called upon from anywhere and that function can return a value.(?) argh!! i think i know why Einstein's hair was always so messy!! thanks, Paul Williams weather today in Kalispell, MT: 7 deg this morning, got a little snow last night, only about 6 or 8 inches, not much. maybe more later. Similar TutorialsYou've probably seen this many times with two dynamic linking select boxes that deals in form or another deal with countries and then cities for the second one or something similar well I have another question about that. I've looked at a few others and well their coding is so different then mine that I don't want to use code for my own project that I don't understand in case I need to reuse it for some other reason down the road. The user selects a country and with the users selection it passes the countryid as a variable through jquery's ajax fuction as a post parameter to a php process page in which it goes to a table and matches the country id with the db field called country_id in the arenas table. With all the records that matches that countryid it selects the arena name and city that the arena is in and displays it as an option tag now I'm trying to figure out with muliple entries how can I pass the results back to the form page and insert it into the arenas dropdown box. Following is my coding separated out for you. I only included the necessary parts. All help would be greatly appreciated. form page Code: $('#countryid').change(function() {
var countryid = $("select#countryid").val();
var dataString = 'countryid='+ countryid;
$.ajax({
type: "POST",
url: "processes/booking.php",
data: dataString,
success: function() {
}
});
});
<div class="field required">
<label for="countryid">Country</label>
<select class="dropdown" name="countryid" id="countryid" title="Country">
<option value="0">- Select -</option>
<?php
$query = 'SELECT id, countryname FROM countries';
$result = mysqli_query ( $dbc, $query ); // Run The Query
while ( $row = mysqli_fetch_array ( $result, MYSQL_ASSOC ) )
{
print "<option value=\"".$row['id']."\">".$row['countryname']."</option>\r";
}
?>
</select>
<span class="required-icon tooltip" title="Required field - This field is required, it cannot be blank, and must contain something that is different from emptyness in order to be filled in. ">Required</span>
</div>
<div class="field required">
<label for="arena">Arenas</label>
<select class="dropdown" name="arenas" id="arenas" title="Arenas">
</select>
<span class="required-icon tooltip" title="Required field - This field is required, it cannot be blank, and must contain something that is different from emptyness in order to be filled in. ">Required</span>
</div>
php process page PHP Code: $countryid = (int)$_GET['countryid']; $query = "SELECT * FROM `arenas` WHERE `country_id` = '$countryid'"; $result = mysqli_query ($dbc, $query); while ($row = mysqli_fetch_array($dbc, $result)) { echo '<option value="'.$row['arena'].'">'.$row['arena'].' - '.$row['city'].'</option>\n'; } Hi, Any one help me In one variable i have some data ex: var data = document.getElementById("imageId").value; I want to pass this data to another function inside another function ex: var button1 = '<img src="images/Remove-button.gif" width="70" height="15" onclick="removeVerifyImageRow(this),saveLibData('+data+')"/>'; while running the application i am getting an error incase if the data is string ex:if data is 'image1' i am getting an error, but with number there is no problem ex: if data is '1122'. this is very urgent to solve this problem plz any one help me Hey all i am in need of some help trying to figure out how to pass a string into an array field for a chart. The chart i am using is this [http://www.highcharts.com/] Here is the chart code: Code: function drawChart(theDATA)
{
var chart = new Highcharts.Chart({
chart: {renderTo: 'container',defaultSeriesType: 'column'},
title: {text: 'March 2010 Confirmed User Visit\'s'},
xAxis: {categories: ['1','2','3','4','5','6','7','8','9','10','11','12','13','14','15','16','17','18','19','20','21','22','23','24','25','26','27','28','29','30','31']},
yAxis: {min: 0,title: {text: 'User Visit\'s'}},
legend: {layout: 'vertical',backgroundColor: '#FFFFFF',style: {left: '100px',top: '70px',bottom: 'auto'}},
tooltip: {formatter: function() {return this.y;}},
plotOptions: {column: {pointPadding: 0.2,borderWidth: 0}},
series: [{name: 'Confirmed Users Visit\'s',
data: theDATA.split(',')
}]
});
}
With the code above, you would think that theDATA would work but it does not display the data within it. Say that theDATA is '2,5,4,7,8,9'. If i had this: Code: data: [2,5,4,7,8,9] Then it would work just fine. But if i use those same numbers... Code: theData = "2,5,4,7,8,9"
data: theDATA.split(',')
It does nothing on the chart... So what am i doing wrong???? David I m trying to send data to my database (Mysql). When I enter things in the prompt box it doesn t go to my database. Can someone tell me why, please? Here is my code: <script type="text/javascript"> function show_prompt() { var name=prompt("question"); if (name!=null && name!="") { //set the hidden input value to the value entered in the prompt document.input.purpose.value = name; //document.input referring to the form named 'input' document.input.submit(); //submit the form } } </script> <form id="propose" name="input" action="insertpropose.php" method="post"><br/> <input type="submit" onclick="show_prompt()" value="propose" /> <input type="hidden" name="propose" value=""> </form> and the insertpropose.php form is: $propose=$_POST['propose']; mysql_connect(localhost,$username,$password); @mysql_select_db($database) or die( "Unable to select database"); $query = "INSERT INTO propose VALUES ('','$propose')"; mysql_query($query); mysql_close(); Scenario: Client Side : Simple functions that have events tied to different elements. Each time an event is triggered the function begins an Ajax call to an external server side page filled with JS functions. Server Side : Our client side AJAX call sends the name of the function we want to call out on this file. Once called and performed, it returns DOM edits that could be fired once our client side page receives the data back from Ajax. I know that data being returned from Ajax is always a string. But would it be possible? I mean could the server side file send out commands or rather DOM edits that the client side could pick up on and perform? I am almost 100% certain the answer is no due to JS needing to be cached in the browser and what not, but I figured I would ask the experts anyways. BTW: objective is to move sensitive core JS functions to prevent online application theft... without Flex or Air. Hi, i'm having a problem with calling a netbeans function through an URL, that saves data to a postgresql table that has 119 columns. This is the original link: Code: http://www.mirodinero.com:8080/mirodinero-war/setMisDatos?callback=respuestaGuardarMisDatos¶m=%26usuario%3DIsa%20Mirodinero%26nivel%3D109%26gano_sal_neto%3D211113.45%26gano_sal_prof%3D2480%26gano_monet%3D0%26gano_renta_fija%3D0%26gano_renta_vble%3D0%26gano_inmuebles%3D2226.75%26gano_otros%3D2223.73%26gano_otros_ing%3D2411.12%26porc_gano_monet%3D0%26porc_gano_rentaf%3D0%26porc_gano_rentav%3D0%26porc_gano_inm%3D2%26porc_gano_otros%3D2%26porc_gano_otros_ing%3D1%26gasto_casa1%3D1306.46%26gasto_casa2%3D2402.38%26gasto_casa3%3D3999.57%26gasto_prestamo1%3D93475.58%26gasto_prestamo2%3D7325.88%26gasto_prestamo3%3D34090.9%26gasto_tarjetas%3D29443.2%26gasto_ibi%3D5670%26gasto_imp_otros%3D6780%26gasto_seg_inm%3D1320%26gasto_seg_pens%3D3451.22%26gasto_seg_vida%3D2330%26gasto_seg_plan%3D34230%26gasto_seg_medico%3D21220%26gasto_seg_coche%3D220%26gasto_luz%3D620%26gasto_agua%3D4550%26gasto_gas%3D320%26gasto_telef_f%3D22320%26gasto_telef_m%3D2350%26gasto_internet%3D20%26gasto_tv%3D3450%26gasto_hogar%3D20%26gasto_comida%3D20%26gasto_cenas_copas%3D20%26gasto_viajes%3D20%26gasto_vacaciones%3D220%26gasto_mobiliario%3D220%26gasto_ropa%3D2320%26gasto_transp%3D230%26gasto_otros%3D3620%26gasto_colegios%3D240%26gasto_univ%3D340%26gasto_master%3D2230%26gasto_otros_gastos%3D7323433%26porc_gasto_tarjetas%3D0%26porc_gasto_ibi%3D0%26porc_gasto_trib%3D0%26porc_gasto_seg_inm%3D0%26porc_gasto_seg_pens%3D0%26porc_gasto_seg_vida%3D2%26porc_gasto_seg_plan%3D2%26porc_gasto_seg_med%3D0%26porc_gasto_seg_coche%3D0%26porc_gasto_sum_luz%3D2%26porc_gasto_sum_agua%3D2%26porc_gasto_sum_gas%3D0%26porc_gasto_sum_teleff%3D0%26porc_gasto_sum_telefm%3D0%26porc_gasto_sum_int%3D0%26porc_gasto_sum_tv%3D0%26porc_gasto_nivel_hogar%3D0%26porc_gasto_nivel_comida%3D0%26porc_gasto_nivel_cenas%3D0%26porc_gasto_nivel_viajes%3D0%26porc_gasto_nivel_vacac%3D0%26porc_gasto_nivel_mob%3D0%26porc_gasto_nivel_ropa%3D20%26porc_gasto_nivel_transp%3D30%26porc_gasto_nivel_otros%3D30%26porc_gasto_colegios%3D2%26porc_gasto_univ%3D0%26porc_gasto_master%3D0%26porc_gasto_otros_gastos%3D23%26tengo_casa1%3D1231.11%26tengo_casa2%3D10000%26tengo_casa3%3D22240%26tengo_otras%3D23560%26tengo_monetario%3D1212.34%26tengo_planpensiones%3D23230%26tengo_otros%3D23330%26porc_tengo_casa1%3D1%26porc_tengo_casa2%3D0%26porc_tengo_casa3%3D2%26porc_tengo_otras%3D0%26porc_tengo_monet%3D0%26porc_tengo_plan%3D0%26porc_tengo_otros%3D0%26debo_casa1%3D4340%26debo_casa2%3D23450%26debo_casa3%3D23430%26debo_prestamo1%3D23330%26debo_prestamo2%3D6871.11%26debo_prestamo3%3D11340%26debo_tarjetas%3D61340%26porc_debo_casa1%3D30%26porc_debo_casa2%3D10%26porc_debo_casa3%3D12%26porc_debo_prestamo1%3D1%26porc_debo_prestamo2%3D12%26porc_debo_prestamo3%3D1%26porc_debo_tarjetas%3D4%26plazo_debo_casa1%3D230%26plazo_debo_casa2%3D450%26plazo_debo_casa3%3D122%26plazo_debo_prestamo1%3D3%26plazo_debo_prestamo2%3D12%26plazo_debo_prestamo3%3D4 It's 2568 characters long, so i guess that's why i get sometimes a GET undefined method in the web console. The original function does something like this: Code: var param ="&usuario="+usuario+"&nivel="+nivel+gano+porc_gano+gasto+porc_gasto+tengo+porc_tengo+debo+porc_debo+plazo_debo;
var s = document.createElement("script");
s.type = "text/javascript"; s.async = true;
s.src = server_direction +"setMisDatos?callback=respuestaGuardarMisDatos¶m="+encodeURIComponent(param);
var h = document.getElementsByTagName("script")[0];
h.parentNode.insertBefore(s, h); //or h.appendChild(s);
and every variable in the param is written like this: Code: var plazo_debo_casa1 = (getValor("plazo_debo_casa1"));
var plazo_debo_casa2 = (getValor("plazo_debo_casa2"));
var plazo_debo_casa3 = (getValor("plazo_debo_casa3"));
var plazo_debo_prestamo1 = (getValor("plazo_debo_prestamo1"));
var plazo_debo_prestamo2 = (getValor("plazo_debo_prestamo2"));
var plazo_debo_prestamo3 = (getValor("plazo_debo_prestamo3"));
var plazo_debo ="&plazo_debo_casa1="+plazo_debo_casa1+"&plazo_debo_casa2="+plazo_debo_casa2+"&plazo_debo_casa3="+plazo_debo_casa3+"&plazo_debo_prestamo1="+plazo_debo_prestamo1+"&plazo_debo_prestamo2="+plazo_debo_prestamo2+"&plazo_debo_prestamo3="+plazo_debo_prestamo3;
since my webpage has different parts where to put the data, i thought that a good idea would be to create smaller function for parts of variable, for example putting 30 variables and the do the callback. I did like this: Code: function guardaLoQueGano(){
var nivel = parseInt(document.getElementById('progreso_nivel_total').style.marginLeft);
/*idUsusario*/
var usuario = miGetElementsByClassName('title', document.getElementById('block-user-1'))[0].innerHTML;
/*gano*/
var gano_sal_neto = getValor("gano_sal_neto");
var gano_sal_prof = getValor("gano_sal_prof");
var gano_monet = getValor("gano_monet");
var gano_renta_fija = (getValor("gano_renta_fija"));
var gano_renta_vble = (getValor("gano_renta_vble"));
var gano_inmuebles = (getValor("gano_inmuebles"));
var gano_otros = (getValor("gano_otros"));
var gano_otros_ing = (getValor("gano_otros_ing"));
/*gano porcentajes*/
var porc_gano_monet = getValor("porc_gano_monet");
var porc_gano_rentaf = getValor("porc_gano_rentaf");
var porc_gano_rentav = getValor("porc_gano_rentav");
var porc_gano_inm = getValor("porc_gano_inm");
var porc_gano_otros = getValor("porc_gano_otros");
var porc_gano_otros_ing = getValor("porc_gano_otros_ing");
var param = "&usuario=" + usuario + "&nivel=" + nivel + "&gano_sal_neto=" + gano_sal_neto + "&gano_sal_prof=" + gano_sal_prof + "&gano_monet=" + gano_monet + "&gano_renta_fija=" + gano_renta_fija + "&gano_renta_vble=" + gano_renta_vble + "&gano_inmuebles=" + gano_inmuebles + "&gano_otros=" + gano_otros + "&gano_otros_ing=" + gano_otros_ing + "&porc_gano_monet=" + porc_gano_monet + "&porc_gano_rentaf=" + porc_gano_rentaf + "&porc_gano_rentav=" + porc_gano_rentav + "&porc_gano_inm=" + porc_gano_inm + "&porc_gano_otros=" + porc_gano_otros + "&porc_gano_otros_ing=" + porc_gano_otros_ing;
var s = document.createElement("script");
s.type = "text/javascript"; s.async = true;
s.src = direccion_servidor + "setMisDatos?callback=respuestaGuardarMisDatos¶m=" + encodeURIComponent(param);
var h = document.getElementsByTagName("script")[0];
// adesso h.appendChild(s);
h.parentNode.insertBefore(s, h);
alert("Datos de lo que gano actualizados correctamente");
}
This kind of function works perfectly, but has a big problem: it changes the values of the columns of this function, but deletes the remaining ones. How can I create different smaller function, in a way to save only on some columns without changing the others? Shall I write the netbeans function setMisDatos to make it more clear? Not sure how to explain this but...... Using a meta refresh to display a thankyou page for 5 seconds after a form submit, then return to form. If user clicks back to return to main page from form, returns to thankyou page instead, and has to go back to form again, then back to main page. I can have thankyou page return to main page, but would rather return to form. This is what it should do: main page -> form -> thankyou page -> form -> main page This is what it does: main -> form -> thankyou -> form -> thankyou -> form -> main Is there any way to remove thankyou page from history? i have the following code which i am trying to insert a 'back button' into to go back to the previous page. i can only seem to get the button to appear either at the very top or very bottom of the page, does anyone know how i can specify the location? this script is generated from easypano tourweaver - Code: <html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Virtual Tour Created By CAPITA SYMONDS</title>
</head>
<body leftMargin="0" topMargin="0" rightMargin="0" bottomMargin="0">
<script type="text/javascript" src="swfobject.js"></script>
<div id="flashcontent">
To view virtual tour properly, Flash Player 9.0.28 or later version is needed.
Please download the latest version of <a href="http://www.adobe.com/go/getflashplayer" target="_blank">Flash Player</a> and install it on your computer.
</div>
<script type="text/javascript">
// <![CDATA[
var so = new SWFObject("twviewer.swf", "sotester", "1024", "768", "9.0.0", "#FFFFFF");
so.addParam("allowNetworking", "all");
so.addParam("allowScriptAccess", "always");
so.addParam("allowFullScreen", "true");
so.addParam("scale", "noscale");
//<!-%% Share Mode %%->
so.addVariable("lwImg", "resources/2_area_multipix_preloading image file.jpg");
so.addVariable("lwBgColor", "255,255,255,255");
so.addVariable("lwBarBgColor", "255,186,186,186");
so.addVariable("lwBarColor", "255,153,0,0");
so.addVariable("lwBarBounds", "-512,-384,1024,768");
so.addVariable("lwlocation", "4");
so.addVariable("lwShowLoadingPercent", "false");
so.addVariable("lwTextColor", "255,0,0,0");
so.addVariable("iniFile", "config_2_Area_Multipix.bin");
so.addVariable("progressType", "1");
so.addVariable("swfFile", "resources/2_area_multipix_1_animation for tourweaver.swf");
so.addVariable("href", location.href);
so.write("flashcontent");
// ]]>
</script>
</body>
</html>
here is the button code - Code: <span onclick="javascript:history.back()" style="text-decoration:underline; color:blue; cursor:hand">Back</span> Hi, I currently have a <div> with a <p> and have an edit button that when clicked will transform it into a textarea using jQuery's .html(). I also have a cancel button which allows the user to cancel the edit and return the textarea to the previous content, any ideas how I do this? JavaScript Code: // JavaScript Document
jQuery(document).ready(function(e) {
$('#edit_p').click(function(e){
$('#cancel_p').show();
$('#greeting').html("<textarea id='txt_greeting' cols='20'>" + $('#greeting p').text() + "</textarea>");
$(this).hide();
});
$('#cancel_p').click(function(e){
$('#edit_p').show();
$(this).hide();
});
});
HTML Code: <!DOCTYPE HTML> <html> <head> <meta charset="utf-8"> <title>Textarea/Button Change</title> <script type="text/javascript" src="jquery-1.7.js"></script> <script type="text/javascript" src="txt_area_jquery.js"></script> <link rel="stylesheet" type="text/css" href="txt_area_style.css" /> </head> <body> <div id="greeting"><p>Hello, today is a great day!</p></div> <input type="button" name="edit_p" id="edit_p" value="Edit" /> <input type="button" name="cancel_p" id="cancel_p" value="Cancel" /> <?php ?> </body> </html> I am making a simple puzzle game on Android using Phonegap, that is HTML5, CSS3 and JavaScript. When a user fills an answer on a page, if the answer is correct, it will go to another page. However, once the user goes to the next page, he/she CANNOT return back to the previous page. I do not want the user to return back, else he/she will have to fill the answer again to go to the next page, so it's not good. Thank I need an html page that when visited automatically redirects the browser to return to the previous page it was on. here is the current code I have: Code: <head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<title>Untitled Document</title>
<script type="text/javascript">
function load()
{
history.go(-1)
alert("");
}
</script>
</head>
<body onload="load()">
<input type="button" value="Back" onclick="goBack()" />
</body>
</html>
this works in firefox but in IE you have to press ok in the alert box before it returns. I admit I am a javascript novice. Any suggestions Hello there, I'm a 30yr old returning to school and I signed up for a CMIS102 class, thinking it be more explanatory as the syllabus let on. But I was wrong. While I do understand some of what the professor has been teaching us, like modular programming and IfElse statements, I can't wrap my head around things like While Loops. My professor has saddled us with a couple assignments, requiring us to write in pseudocode and I was wondering if anyone could explain what he wants from this assignment or even help me with it, that maybe I can finally have a grasp of it, and will know what I'm doing on the final. ~Tia P.S. I've posted the assignment question below: I need to write a pseudo-codepseudocode for the following question but don't know how: Write a program to read a list of exam scores (in the range 0 to 100) and to output the total number of grades and the number of grades in each letter=grade category. The end input is indicated by a negative score as a sentinel value. (The negative value is used only to end the loop, so do not use it in the calculations. Example: 88 93 55 77 100 -1 (The output would be) Total number of grades = 5 Number of A's =2 Number of B's = 1 Number of C's =1 Number of D's = 0 Number of F's =1 Must prompt user to run again this function seems to be working fine in all browser but of course. I'm still a noob at JavaScript and well things like this just doesn't make sense. when I go to alert this function in IE I get undefined. But other browser gives me a value. What am I doing wrong with this function? Code: function ext() {
var img = document.getElementById('photoSmall');
img = img.src;
if (typeof img == 'string' && img != 'undefined') {
var typeis = img.substr(-4);
if (typeis == '.png' || '.jpg' || '.gif') {
return typeis;
}
}
}
Thanks Jon W I am not sure if this has been posted before but I need help with this. When a user clicks on the back button I need them to be directed to the previous page and still have their original selections and not the defaults. Here is the rest of code on the back button. At the moment this is not working. <input id=STDBUTSHORT type="button" value="Back" onClick="history.back();">') Thanks in advance. Hello kind folk of codingforums.com! I am pretty new to JS and have been racking my brain all week to find a solution for this. I have a javascript fading slideshow but it has no back or next button. I'm not sure if i need to add another function or go about it a different way. Here is the code if anyone can help. Thanks in advance!!! <script type="text/javascript"> var slidespeed=5800 var slideimages=new Array("my_images/SBDCslide.gif","my_images/americanbuilding.gif","my_images/emerald.gif", "my_images/nautical.gif", "my_images/rent.gif","my_images/allyn.gif","my_images/SBDCslide.gif","my_images/signs.gif","my_images/cobalt.gif","my_images/test.gif","my_images/federal.gif") var slidelinks=new Array("#" ,"american.asp","emerald.asp","nautical.asp") var whichlink=0 var whichimage=0 var imgobj, filtersupport, blenddelay var imageholder=new Array() for (i=0;i<slideimages.length;i++){ //preload images imageholder[i]=new Image() imageholder[i].src=slideimages[i] } function gotoshow(){ window.location=slidelinks[whichlink] } function slideit(){ if (filtersupport) imgobj.filters[0].apply() imgobj.src=imageholder[whichimage].src if (filtersupport) imgobj.filters[0].play() whichlink=whichimage whichimage=(whichimage<slideimages.length-1)? whichimage+1 : 0 setTimeout("slideit()", slidespeed+blenddelay) } window.onload=function(){ imgobj=document.getElementById("slideshow") //access img obj filtersupport=imgobj.filters //check for support for filters blenddelay=(filtersupport)? imgobj.filters[0].duration*1000 : 0 slideit() } </script> I need a back to top link on the bottom of my page that stays there all the time while people are scrolling.. is this possible? is this close to what i'm looking for? http://javascript.internet.com/page-...ting-link.html i've seen it on some other sites but I can't find any to reference now... I'm totally new to this! thanks for your help! -B While these questions have probably been asked before, separately, I'd like to know how to put them together. What I want to do, is create a link, that goes to an url that I decide, after which, the page goes back to the previous page and refreshes. It would be ideal, if that could be done with AJAX, but that's probably asking too much. Especially if I want to use it for wordpress. |
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