$chunks = preg_split('/(de1|del2|del3)/',$string,-1, PREG_SPLIT_NO_EMPTY);

There are also various flags you can use as optional:

• PREG_SPLIT_NO_EMPTY  – To return only non-empty pieces.
• PREG_SPLIT_DELIM_CAPTURE – To capture and return the parenthesized expression in the delimiter.
• PREG_SPLIT_OFFSET_CAPTURE – To return the appendant string offset for every occurring match.

Here is a simple example of usage:

$string = '
<ul>
	<li>Name: John</li>
	<li>Surname- Doe</li>
	<li>Phone* 555 0456789</li>
	<li>Zip code= ZP5689</li>
</ul>
';

$chunks = preg_split('/(:|-|\*|=)/', $string,-1, PREG_SPLIT_NO_EMPTY);

// This is just a simple way to debug stuff ;-)
echo '<pre>';
print_r($chunks);
echo '</pre>';

…and this is the output:

<pre>Array
(
    [0] => 
<ul>
	<li>Name
    [1] =>  John</li>
	<li>Surname 
    [2] =>  Doe</li>
	<li>Phone
    [3] =>  555 0456789</li>
	<li>Address 
    [4] =>  Str Preg Split example</li>
	<li>Zip code 
    [5] =>  ZP5689</li>
</ul>

)
</pre>

Now let’s put everything back together in a nice form.

$nweString = $chunks[0];
for($i=1; $i<count($chunks); $i++) {
	$nweString .= ':'.$chunks[$i];
}
echo $nweString;

Enjoy this simple, yet powerful way to split a string by multiple delimiters in PHP. You can further read about the preg_split()  function on the PHP documentation site here  http://php.net/manual/en/function.preg-split.php

If you remove the Toolbar, then you are effectively removing the Dashboard Header, which is something the folks at WordPress don’t think you should be doing.

Is it Impossible to Remove the Toolbar?

The toolbar, where the Admin Bar was in old versions, contains vital links for you to log-out, and the links to go back to the main site. It CANNOT be disabled, and has no hooks to be disabled it. Besides if you are using Multisite, all the network admin links are in there.

On the other hand you CAN however turn it off on the front end in your profile. Remember this is only for your profile.

If you would like to accomplish the same thing for all your users (remember this is just for the front end toolbar) you can place the following into your functions.php file.

function remove_admin_tolbar_on_frontend() {
	remove_action('wp_head', '_admin_bar_bump_cb');
}
add_action('get_header', 'remove_admin_tolbar_on_frontend');

There are also tons of plugins that can help you a hide the toolbar. You can get one from here: https://wordpress.org/plugins/search.php?type=term&q=remove+admin+bar

Some are using the same practice explained here and some are only hiding it using css. Note that if you are using CSS the admin toolbar is still loaded but not displayed to the user.

So here is a list for the results when evaluating the expressions in PHP. I am sure that this can be applied to a bunch of other languages. (I think it is a little bit superficial to say that it apply to all programming language since I only know some of them).

Logical operator AND  ( && )

false and false => false

false and true => false

true and false => false

true and true => true

Logical operator OR  ( || )

false or false => false

false or true => true

true or false => true

true or true => true

Logical operator NOT  ( ! )

!false => true

!true => false