What is csrf and xss clean?

          CSRF :

Cross-site request forgeries are a type of malicious exploit whereby unauthorized commands are performed on behalf of an authenticated user.

Laravel automatically generates a CSRF "token" for each active user session managed by the application. This token is used to verify that the authenticated user is the one actually making the requests to the application

XSS clean :

the attack is basically a type of code injection attack which is made possible by incorrectly validating user data, which usually gets inserted into the page through a web form or using an altered hyperlink. The code injected can be any malicious client-side code, such as JavaScript, VBScript, HTML, CSS, Flash, and others. The code is used to save harmful data on the server or perform a malicious action within the user’s browser.

Unfortunately, cross-site scripting attacks occurs mostly, because developers are failing to deliver secure code. Every PHP programmer has the responsibility to understand how attacks can be carried out against their PHP scripts to exploit possible security vulnerabilities. Reading this article, you’ll find out more about cross-site scripting attacks and how to prevent them in your code.

Preventing Cross-Site Scripting Attacks

•     Data Validation

•     Data Sanitization

•     Output Escaping

• Htmlspecialchars :

• The htmlspecialchars() function converts some predefined characters to HTML entities.

• HTML entities

• The htmlentities() function converts characters to HTML entities.

• Strip_tags

• The strip_tags() function strips a string from HTML, XML, and PHP tags.

• Note: HTML comments are always stripped. This cannot be changed with the allow parameter.

• Note: This function is binary-safe.

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Trim()

The trim() function removes whitespace and other predefined characters from both sides of a string.

ltrim() - Removes whitespace or other predefined characters from the left side of a string

rtrim() - Removes whitespace or other predefined characters from the right side of a string

Change an HTML5 input's placeholder color with CSS

There are three different implementations: pseudo-elements, pseudo-classes, and nothing.

• WebKit, Blink (Safari, Google Chrome, Opera 15+) and Microsoft Edge are using a pseudo-element: ::-webkit-input-placeholder. 
• Mozilla Firefox 4 to 18 is using a pseudo-class: :-moz-placeholder (one colon). 
• Mozilla Firefox 19+ is using a pseudo-element: ::-moz-placeholder, but the old selector will still work for a while. 
• Internet Explorer 10 and 11 are using a pseudo-class: :-ms-input-placeholder. 

Internet Explorer 9 and lower does not support the placeholder attribute at all, while Opera 12 and lower do not support any CSS selector for placeholders.
The discussion about the best implementation is still going on. Note the pseudo-elements act like real elements in the Shadow DOM. A padding on an input will not get the same background color as the pseudo-element.

So we need separate rules for each browser. Otherwise the whole group would be ignored by all browsers.

::-webkit-input-placeholder { /* WebKit, Blink, Edge */
    color:    #909;
}
:-moz-placeholder { /* Mozilla Firefox 4 to 18 */
   color:    #909;
   opacity:  1;
}
::-moz-placeholder { /* Mozilla Firefox 19+ */
   color:    #909;
   opacity:  1;
}
:-ms-input-placeholder { /* Internet Explorer 10-11 */
   color:    #909;
}
::-ms-input-placeholder { /* Microsoft Edge */
   color:    #909;
}

<input placeholder="php999 is great!">

Edit an incorrect commit message in Git

Edit an incorrect commit message in Git

Amending the commit message

git commit --amend

Will open your editor, allowing you to change the commit message of the most recent commit. Additionally, you can set the commit message directly in the command line with:

git commit --amend -m "New commit message"

 

Make sure you don't have any working copy changes staged before doing this or they will get committed too. (Unstaged changes will not get committed.)

Changing the message of a commit that you've already pushed to your remote branch

If you've already pushed your commit up to your remote branch, then you'll need to force push the commit with

git push <remote> <branch> --force
# Or
git push <remote> <branch> -f

Warning: force-pushing will overwrite the remote branch with the state of your local one. If there are commits on the remote branch that you don't have in your local branch, you will lose those commits.
Warning: be cautious about amending commits that you have already shared with other people. Amending commits essentially rewrites them to have different SHA IDs, which poses a problem if other people have copies of the old commit that you've rewritten. Anyone who has a copy of the old commit will need to re-synchronize their work with your newly re-written commit, which can sometimes be difficult, so make sure you coordinate with others when attempting to rewrite shared commit history, or just avoid rewriting shared commits altogether.

Documentation

• git-commit(1) Manual Page

website is the lightbox effect

One of the most popular ways you can showcase photos on your website is the lightbox effect.
Well, we wanted to simplify the process, so we've written a little tool that makes adding the Fancybox lightbox script to your page a snap.  Thanks to cdnjs, you don't even have to worry about adding any files to your site.



 

How to check if string has at least one letter, number and special character in php

Lowercase character, Uppercase character, Digit, Symbol

^(?=.*[a-z])(?=.*[A-Z])(?=.*\d)(?=.*(_|[^\w])).+$

A short explanation:

^ // the start of the string
(?=.*[a-z]) // use positive look ahead to see if at least one lower case letter exists
(?=.*[A-Z]) // use positive look ahead to see if at least one upper case letter exists
(?=.*\d) // use positive look ahead to see if at least one digit exists
(?=.*[_\W]) // use positive look ahead to see if at least one underscore or non-word character exists
.+ // gobble up the entire string
$ // the end of the string

Here is more explain of this type of password security in regex

Minimum 8 characters at least 1 Alphabet and 1 Number:

"^(?=.*[A-Za-z])(?=.*\d)[A-Za-z\d]{8,}$"

Minimum 8 characters at least 1 Alphabet, 1 Number and 1 Special Character:

"^(?=.*[A-Za-z])(?=.*\d)(?=.*[$@$!%*#?&])[A-Za-z\d$@$!%*#?&]{8,}$"

Minimum 8 characters at least 1 Uppercase Alphabet, 1 Lowercase Alphabet and 1 Number:

"^(?=.*[a-z])(?=.*[A-Z])(?=.*\d)[a-zA-Z\d]{8,}$"

Minimum 8 characters at least 1 Uppercase Alphabet, 1 Lowercase Alphabet, 1 Number and 1 Special Character:

"^(?=.*[a-z])(?=.*[A-Z])(?=.*\d)(?=.*[$@$!%*?&])[A-Za-z\d$@$!%*?&]{8,}"

Minimum 8 and Maximum 10 characters at least 1 Uppercase Alphabet, 1 Lowercase Alphabet, 1 Number and 1 Special Character:

"^(?=.*[a-z])(?=.*[A-Z])(?=.*\d)(?=.*[$@$!%*?&])[A-Za-z\d$@$!%*?&]{8,10}"

I hope this will help you  

Get country by mobile no

Here I am going to tell you how can you get country by mobile no
sometime you have the mobile no with country code

    mobile
   971525478965
   919844005522
   45712345678

I am going to through each number in the database and find the country code from

the mobile number display the country code and the country using php.

 If you  like then share 

Get selected value in dropdown list using JavaScript?

Get selected value in dropdown list using JavaScript?

<select id="ViewBy">
  <option value="1">Subjet1</option>
  <option value="2" selected="selected">Subject2</option>
  <option value="3">Subject3</option>
</select>



Running this code:

var e = document.getElementById("ViewBy");
var strUser = e.options[e.selectedIndex].value;

Would make strUser be 2.
If what you actually want is Subject2, then do this:

var e = document.getElementById("ViewBy");
var strUser = e.options[e.selectedIndex].text;

Which would make strUser be Subject2


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jQuery:

$("#elementId :selected").text() //the text content of the selected option
$("#elementId").val()            //the value of the selected option

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AngularJS

// html

<select ng-model="selectItem" ng-options="item as item.text for item in items">
</select>
<p>Text: {{selectItem.text}}</p>
<p>Value: {{selectItem.value}}</p>

// javascript
$scope.items = [{
  value: 'item_1_id',
  text: 'Item 1'
}, {
  value: 'item_2_id',
  text: 'Item 2'
}];