Method to create XMLHttpRequest object_PHP tutorial

Method 1: Recommendation

//Create a Boolean variable

var xmlhttp = false;

// Check whether you are using IE browser

try{

// If the JS version is greater than 5

xmlhttp = new ActiveXObject("Msxml2.XMLHTTP");

alert("You are using Microsoft Internet Explorer.");

}catch(e){

// If not, use the old version of ActiveX object

try{

// If you are using IE browser

xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");

alert("You are using Microsoft Internet Explorer.");

}catch(e){

// Use a non-IE browser

xmlhttp = false;

}

}

// If you are using IE non-browser

if(!xmlhttp && typeof XMLHttpRequest != undefined){

xmlhttp = new XMLHttpRequest();

alert("You are not using Microsoft Internet Explorer.");

}

Method 2:

var xmlhttp;
// If the ActiveX object is available, the IE browser must be used
(!window.ActiveXObject){
xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
}else{
// Use Javascript method to process

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truehttp: //www.bkjia.com/PHPjc/508226.htmlTechArticleMethod 1: Recommended // Create a Boolean variable var xmlhttp = false; // Check whether you are using IE Browser try{ // If the JS version is greater than 5 xmlhttp = new ActiveXObject("Msxml2.X...