<form action="/phpchecks.php" enctype="multipart/form-data" >

  <label for="ema">Email</label>

  <input type="text" name="ema" pattern="/^[\w\-\.]*[\w\.]\@[\w\.]*[\w\-\.]+[\w\-]+[\w]\.+[\w]+[\w $]/" ><br><br>

  <input type="submit">

</form>

​

[a-zA-Z0-9_\.\+-]+@[a-zA-Z0-9-]+\.[a-zA-Z0-9-\.]+

^[\w-\.]+@([\w-]+\.)+[\w-]{2,4}$

//will validate for:  test@gmail.com etc

/^[a-zA-Z0-9.!#$%&’*+/=?^_`{|}~-]+@[a-zA-Z0-9-]+(?:\.[a-zA-Z0-9-]+)*$/

​

// This is by far the best regex used for email

^\w+([-+.']\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*$

const emailRegex = /^\w+([\.-]?\w+)*@\w+([\.-]?\w+)*(\.\w{2,5})+$/

# regrex for email for javascript

​

/^(([^<>()\[\]\\.,;:\s@"]+(\.[^<>()\[\]\\.,;:\s@"]+)*)|(".+"))@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}])|(([a-zA-Z\-0-9]+\.)+[a-zA-Z]{2,}))$/

​

const EMAIL_PATTERN =

  /^(([^<>()[\]\.,;:\s@\"]+(\.[^<>()[\]\.,;:\s@\"]+)*)|(\".+\"))@(([^<>()[\]\.,;:\s@\"]+\.)+[^<>()[\]\.,;:\s@\"]{2,})$/i;

// Author : Mahmmoud Kinawy 

​

/^[a-zA-Z0-9.!#$%&'*+/=?^_`{|}~-]+@[a-zA-Z0-9-]+(?:\.[a-zA-Z0-9-]+)*$/

let regex = new RegExp("([!#-'*+/-9=?A-Z^-~-]+(\.[!#-'*+/-9=?A-Z^-~-]+)*|\"\(\[\]!#-[^-~ \t]|(\\[\t -~]))+\")@([!#-'*+/-9=?A-Z^-~-]+(\.[!#-'*+/-9=?A-Z^-~-]+)*|\[[\t -Z^-~]*])");