Ajax speed problem

[willl69]

Hi All,

Ive been having a problem of late with one of my sites that uses PHP5 / Ajax. The problem is that periodically the ajax functions lock up and it gets stuck in the loading phase of the request. If i restart the apache server everything goes back to normal (i assume it severs the connection to the ajax called function).

I think this is a problem with the javascript part as i have tried it using a straight post request and have have no problems and slow loading time is localized to the one user (ie. still works fine on the other computers on my office network).

I have recorded this happening in Firefox, safari and IE6 & 7

My server is running debian with apache2 and php5

Just wondering if somebody can shed some light on what my problem may be?


Cheers

Will

[dmjpro]

Hi All,

Ive been having a problem of late with one of my sites that uses PHP5 / Ajax. The problem is that periodically the ajax functions lock up and it gets stuck in the loading phase of the request. If i restart the apache server everything goes back to normal (i assume it severs the connection to the ajax called function).

I think this is a problem with the javascript part as i have tried it using a straight post request and have have no problems and slow loading time is localized to the one user (ie. still works fine on the other computers on my office network).

I have recorded this happening in Firefox, safari and IE6 & 7

My server is running debian with apache2 and php5

Just wondering if somebody can shed some light on what my problem may be?


Cheers

Will

Ok post your codes here with Code Tags.
And let us know it.

Debasis Jana

[willl69]

Ok post your codes here with Code Tags.
And let us know it.

Debasis Jana

Hi,

Here is my main ajax function

Cheers

Will

 
function submitFormCustom(f, field1, field2, dable){     
    // disable form, or not
    disable = true;
    lastform = f;
    if (disable === true) {
        disable_form(f, true);
    }
 
    // re-id eval ajax part
    if (document.getElementById('ajxjs')) {    
        document.getElementById('ajxjs').innerHTML = '';
        document.getElementById('ajxjs').id = 'id_'+Math.random();
    }
 
 
    if(window.XMLHttpRequest){ 
        var xmlReq = new XMLHttpRequest(); 
 
        if (xmlReq.overrideMimeType) {
            //set type accordingly to anticipated content type
            //http_request.overrideMimeType('text/xml');
            xmlReq.overrideMimeType('text/html');
        }
    } else if(window.ActiveXObject) { 
 
        try {
            var xmlReq = new ActiveXObject("Msxml2.XMLHTTP");
        } catch (e) {
            try {
                var xmlReq = new ActiveXObject("Microsoft.XMLHTTP");
            } catch (e) {}        
        }
    } 
 
    var formData = '', elem = ''; 
    for(var s=0; s<f.elements.length; s++){ 
        elem = f.elements[s]; 
        if ((elem.type == 'checkbox' || elem.type == 'radio') && elem.checked == false) {
            continue;
        }
 
        var selemval = '';
 
        if (elem.tagName == 'SELECT' && elem.multiple === true) {
            var selem = elem.getElementsByTagName('option');
            for (i = 0; i < selem.length; i++) {
                selemval = '';
                if (selem[i].value != "" && selem[i].selected === true) {
                    if(formData != ''){ 
                        formData += '&'; 
                    } 
                    selemval = selem[i].value; 
                    formData += elem.name+"="+selemval.replace(/&/g, 'amp;'); 
                }
            }
        } else {
            if(formData != ''){ 
                formData += '&'; 
            } 
            selemval = elem.value;
            formData += elem.name+"="+selemval.replace(/&/g, 'amp;');
        }
    } 
 
    if (formData != "") {
        formData += "&xrand="+randomString(8);
    }
 
 
 
    xmlReq.onreadystatechange = function(){ 
        if(xmlReq.readyState == 4){ 
 
            if (content = xmlReq.responseText) {
 
                if (trim_str(content) != "") {
                    try {
                        document.getElementById(field1).innerHTML = content;
                    }
                    catch (e) {
                        alert(document.getElementById(field1).innerHTML);
                    }
                    // evaluate JSON
                    if (document.getElementById('jsonjs')) {
                        try {
                            var json = eval("(" + document.getElementById('jsonjs').innerHTML + ")");    
                        } catch (e) {
                            alert('Could not evaluate JSON '+e);
                        }
                    } // end eval JSON
                    // evaluate regular JS
                    if (document.getElementById('ajxjs')) {
                        try {
                            eval(document.getElementById('ajxjs').innerHTML);    
                        }
                        catch (e) {
                            alert('Could not evaluate javascript '+e);
                        }
                    } // end eval js
                    if (disable === true) {
 
                        if (!document.getElementById('msgdivarea') && !document.getElementById('cbform')) {
                            disable_form(f, false);
                        }
 
                        if (resetform === true){
                            f.reset();
                        }
                    }
                }
            }
            document.getElementById(field2).innerHTML = "";
            blockoff = false;
        } else if (xmlReq.readyState == 1) {
            document.getElementById(field2).innerHTML = '<span class="ld">Loading ...</span>';
        } else if (xmlReq.readyState == 3) {
            document.getElementById(field2).innerHTML = '<span class="ld">Please wait ...</span>';
        } else if (xmlReq.readyState == 2) {
            document.getElementById(field2).innerHTML = "";
        }
    }
    xmlReq.open(f.method, f.action, true);
    xmlReq.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");
    xmlReq.setRequestHeader("Content-length", formData.length);
    xmlReq.setRequestHeader("Connection", "close");
    xmlReq.send(formData); 
    return false; 
 
}