string replace (php)

Question

Can anyone suggest a quick function that will automatically strip spaces & apostrophes from a string in PHP.

I am just need to remove any unwanted stuff from a string before it is used as an email address.

eg.

$email = "myname'[email protected]  "; // need to remove the apostrope & empty space

Rok Kralj · Accepted Answer · 2011-09-02 11:06:06Z

4

echo preg_replace('/[\\\' ]/', '', "myname'[email protected] ");

But I don't believe this is the propper thing to do. Consider something like this:

if(!filter_var("myname'[email protected] ", FILTER_VALIDATE_EMAIL))
    echo("E-mail is not valid");

answered Sep 2, 2011 at 11:06

Rok Kralj

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3 Comments

Zabs Over a year ago

Wow.. awesome response thank you guys (and girls) cannot be sexist :-)

Rok Kralj Over a year ago

Thanks! Also consider the second snippet, because emails can be malformed in so many different ways you cannot predict all of them. It is better to inform user about wrong e-mail or deleting it from the database if you have it already stored.

Rok Kralj Over a year ago

@Gaz: Also consider ticking the answer. :)

gnur · Accepted Answer · 2011-09-02 11:05:55Z

2

$email = str_replace(array("'", ' '), '', $email);

answered Sep 2, 2011 at 11:05

gnur

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Comments

Rijk · Accepted Answer · 2011-09-02 11:05:37Z

1

What you need is not str_replace but validation for an email address (what you're describing is actually sanitizing, but wouldn't you want to block the input if the email address is not valid?).

Here's (an example of) a regular expression to check the format of an email address:

( preg_match( '/^\w[-.\w]*@(\w[-._\w]*\.[a-zA-Z]{2,}.*)$/', $_POST['email'] )

answered Sep 2, 2011 at 11:05

Rijk

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Comments

Shef · Accepted Answer · 2011-09-02 11:05:42Z

1

$email = "myname'[email protected] ";
$email = preg_replace("/['\s]/", '', $email);

Demo

answered Sep 2, 2011 at 11:05

Shef

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Comments

Seega · Accepted Answer · 2011-09-02 11:08:25Z

1

$remove = array(" ", "'");
$email = str_replace($remove, "", $email);

http://php.net/manual/de/function.str-replace.php

answered Sep 2, 2011 at 11:08

Seega

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1 Comment

Zabs Over a year ago

Sorry - i keep forgetting to tick stuff :-) they all work but i've ticked the one i used in the end. Thanks guys much appreciated! :)

Atif · Accepted Answer · 2011-09-02 11:11:42Z

1

$email = preg_replace("/(\s|')/", '', "myname'[email protected] ");

answered Sep 2, 2011 at 11:11

Atif

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