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File upload extension made with jQuery

php中世界最好的语言
php中世界最好的语言Original
2018-03-10 15:50:241212browse

This time I will bring you a file upload extension made with jQuery. What are the precautions for using jQuery to make a file upload extension? The following are Let’s take a look at practical cases.

Go directly to the code:

/*
*jquery.ajaxUpload.js
*/jQuery.extend({    ajaxFileUpload: function(s) {
        s = jQuery.extend({}, jQuery.ajaxSettings, s);
        s.type = "POST";        var f = new FormData();        for (var k in s.data) {
            f.append(k, s.data[k]);
        }        if (s.fileElementId) {            if (!jQuery("#" + s.fileElementId).attr("multiple")) {
                f.append(s.fileElementId, jQuery("#" + s.fileElementId).get(0).files[0]);
            } else {                var fs = jQuery("#" + s.fileElementId).get(0).files;                for (var i = 0; i < fs.length; i++) {
                    f.append(s.fileElementId + "[]", fs[i]);
                }
            }
        }
        s.processData = s.contentType = false;
        s.data = f;
        jQuery.ajax(s);
    }
});

Instructions for use: The principle of the script is to process the data before using $.ajax. The usage method is the same as $.ajax. It just adds fileElementId AttributeUsed to identify the id of the input type="file" node.

I believe you have mastered the method after reading the case in this article. For more exciting information, please pay attention to other related articles on the php Chinese website!

Related reading:

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