Usually, this error comes from using an old PHP version on a live server Or a version of PHP that your project dependencies are not supporting. To solve this, you should upgrade the version of PHP on the live server and check it. So let’s see how to do it Step 1: Login to your … Read more

#1. Method One Use the string’s .replace the method with a regex of \D, The RegExp \D Metacharacter is used to search non-digit characters. Which is a replace all non-digits characters: Result: #2. Method Two Use a regular expression to replace all non-numeric characters from a string. Something like: The [^0-9] expression is used to find any character that … Read more

In this blog post, we learn how to check or validate a string containing only numbers. Often this validation is used to validate the phone number. 1. First Method using RegExp \D To validate I am using RegExp \D Metacharacter. The \D metacharacter matches non-digit characters. “isNum” variable returns a true or false. Result 2. Second Method using … Read more

In this post, We learn how to remove Non-alphanumeric characters from a string in javascript. What are non alphanumeric characters? Non-alphanumeric characters are those characters or kinds of symbols. Such as exclamation mark(!), at symbol(@), commas(, ), question mark(?), colon(:), dash(-) etc and special characters like dollar sign($), equal symbol(=), plus sign(+), apostrophes(‘). 1. Using \w Metacharacter … Read more

In this blog post, I share simple javascript code to make Keylogger in Javascript. This simple Js code will record keystrokes from the user on the website page and write a log on log.txt. index.php javascript.js Don’t fotget to add domain in server. We would get the final result like this. log.txt