Php + ajax example getting started-PHP source code

Ec (2); there are a lot of tutorials on getting started with php + js instances online. Let's take a look at the example while learning and tell you how to get started with ajax. Functioncheckfortasks (thedate, e) {find the taskbox corresponding to & lt; div & gt; in the page and set it to visible theObjectdocument. getElementById (& quot; taskbox & quot;); theObject. st script ec (2); script

There are a lot of tutorials on getting started with php + js instances on the Internet. Let's take a look at the examples while learning. Let's tell you how to get started with ajax.

Function checkfortasks (thedate, e ){
// Find the corresponding taskbox in the page

Set to visible
TheObject = document. getElementById ("taskbox ");
TheObject. style. visibility = "visible ";
// Initialize the taskbox location
Var posx = 0;
Var posy = 0;
// Locate the taskbox position as the mouse position
Posx = e. clientX + document. body. scrollLeft;
Posy = e. clientY + document. body. scrollTop;
TheObject. style. left = posx + "px ";
TheObject. style. top = posy + "px ";
// Set the PHP request page
ServerPage = "taskchecker. php? Thedate = "+ thedate;
// Set the location where PHP returns data replacement
ObjID = "taskbox ";
Var obj = document. getElementById (objID );
// Send the request and load the returned data
Xmlhttp. open ("GET", serverPage );
Xmlhttp. onreadystatechange = function (){
If (xmlhttp. readyState = 4 & xmlhttp. status = 200 ){
Obj. innerHTML = xmlhttp. responseText;
}
}
Xmlhttp. send (null );
}

Function autocomplete (thevalue, e ){
// Locate

Location
TheObject = document. getElementById ("autocompletep ");
// Set to visible
TheObject. style. visibility = "visible ";
TheObject. style. width = "152px ";
// Set the tag location for search
Var posx = 0;
Var posy = 0;
Posx = (findPosX (document. getElementById ("yourname") + 1 );
Posy = (findPosY (document. getElementById ("yourname") + 23 );
TheObject. style. left = posx + "px ";
TheObject. style. top = posy + "px ";
// Set the event to keyboard input
Var theextrachar = e. which;
If (theextrachar = undefined ){
Theextrachar = e. keyCode;
}
// Set the location for loading the search list
Var objID = "autocompletep ";
// Set the PHP request page and pass the name entered by the user to the previous value (taking into account the role of Backspace)
If (theextrachar = 8 ){
If (thevalue. length = 1 ){
Var serverPage = "autocomp. php ";
}
Else {
Var serverPage = "autocomp. php" + "? Sstring = "+ thevalue. substr (0, (thevalue. length-1 ));
}
}
Else {
Var serverPage = "autocomp. php" + "? Sstring = "+ thevalue + String. fromCharCode (theextrachar );
}
// Send the request and load the returned data
Var obj = document. getElementById (objID );
Xmlhttp. open ("GET", serverPage );
Xmlhttp. onreadystatechange = function (){
If (xmlhttp. readyState = 4 & xmlhttp. status = 200 ){
Obj. innerHTML = xmlhttp. responseText;
}
}
Xmlhttp. send (null );
}