JS to send a POST request to PHP failed to solve

function Alertwin (title, MSG, W, h) {var titleheight = "22px";//Window caption height var bordercolor = "#666699";//Window The border color of the port var titlecolor = "#FFFFFF"; The title color of the window var titlebgcolor = "#666699"; Window title background color var bgcolor = "#FFFFFF"; Content background color var iwidth = document.documentElement.clientWidth; The width of this window is var iheight = document.documentElement.clientHeight;         The height of this window//creates a popup layer var msgobj = document.createelement ("div"); Set the style of the popup layer MsgObj.style.cssText = "position:absolute;font:11px"; Top: "+ (IHEIGHT-H)/2 +" Px;left: "+ (IWi DTH-W)/2 + "Px;width:" + W + "Px;height:" + H + "px;text-align:center;border:1px solid" + bordercolor + "; background-         Color: "+ bgcolor +";p adding:1px;line-height:22px;z-index:1001; ";         Document.body.appendChild (Msgobj);         Create a table to hold the content on the layer var table = document.createelement ("table");         Place the table on the pop-up layer msgobj.appendchild (table); Format the table         Table.style.cssText = "margin:0px;border:0px;padding:0px;";         table.cellspacing = 0;         Insert a row to display the title var tr = Table.insertrow (-1);         Insert a cell to hold the title var titlebar = Tr.insertcell (-1); TitleBar.style.cssText = "Width:100%;height:" + titleheight + "Px;text-align:left;padding:3px;margin:0px;font:bold         13px ' song body '; color: "+ Titlecolor +"; border:1px solid "+ bordercolor +"; Cursor:move;background-color: "+ titlebgcolor;         TitleBar.style.paddingLeft = "10px";         Set title titlebar.innerhtml = title;         Close button event var closebtn = Tr.insertcell (-1); CloseBtn.style.cssText = "Cursor:pointer;         Text-align:right;padding:2px;background-color: "+ titlebgcolor; closebtn.innerhtml = "x";         Closebtn.onclick = function () {document.body.removeChild (msgobj);         }//Popup message window contents var MsgBox = Table.insertrow ( -1). InsertCell (-1);         MsgBox.style.cssText = "font:10pt ' song"; ";         Msgbox.colspan = 2;         msgbox.innerhtml = msg;         var nameBox1 = Table.insertrow (-1);         var nameLable1 = Namebox1.insertcell (-1);         NameLable1.style.cssText = "font:10pt ' song"; text-align:center; "; namelable1.innerhtml = "Cell phone * ";         var nameBox2 = Table.insertrow (-1);         var nameLable2 = Namebox2.insertcell (-1);         NameLable2.style.cssText = "font:10pt ' song"; text-align:center; "; namelable2.innerhtml = "Verification Code";         var nameBox3 = Table.insertrow (-1);         var nameLable3 = Namebox3.insertcell (-1);         NameLable3.style.cssText = "font:10pt ' song"; text-align:center; "; namelable3.innerhtml = ""; } function Get_mobile_code () {alert ("111"), $.post (' http://' +serverip+ ' smsexecute.php ', {Mobile:jQuery.trim ($ (' # Mobile '). Val ()), Send_code:
 }, Function (msg) {alert (Jquery.trim (unescape (msg)));        }); Alert ("222");}

Reply to discussion (solution)

55 lines before the code, the effect is as follows:

Then click on the 44 line "Get Phone verification Code" button, can trigger 57 lines of Get_mobile_code function, 111 and 222 can pop, but. Post does not respond.

What's wrong with you, there's too many possibilities for this information.

See if there is any session_start () and then there is the curly braces inside the value of the key is actually quoted

Page right-click on the source code to see if your variables are correctly parsed.

See if there is any session_start () and then there is the curly braces inside the value of the key is actually quoted

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Session_Start () is there. The quotation marks have no effect: {"mobile": Jquery.trim ($ (' #mobile '). Val ()), "Send_code": }

Send_code: ' }

Make sure JQuery is loaded correctly

1.firebug What are the error hints?
The 2.firebug network looks at what is returned after post.

See if there is any session_start () and then there is the curly braces inside the value of the key is actually quoted

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Session_Start () is there. The quotation marks have no effect: {"mobile": Jquery.trim ($ (' #mobile '). Val ()), "Send_code": }

Do you correctly parse the PHP script when you right-click on the source code? This is key.

Send_code: ' }

Make sure JQuery is loaded correctly

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Hello, by the way, ask a question, such as I used in the a.php $_session[' send_code ']= ' 123456 ', then in the b.php can be directly used $_session[' Send_code '? Or do you need to specify b.php in a.php like post?

Yes, you can use it directly
But there is a premise: Must have Session_Start (); Statement

Yes, you can use it directly
But there is a premise: Must have Session_Start (); Statement

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Does the value of $_session[' Send_code ' always exist?

No, after closing the browser or closing the tab associated with the site, there is no

I found myself walking into a dead end.

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