button in header menu php - php

Question

i created a header.php for my web site.
For my menu, i created 5 buttons.
When i press on a button it redirect me on the page associated to it.
Until now everything fine.
What i want is, on the current page, my button of the page associated to it change to an other color or background image.
I dont know if we can do that and if i explain myself well.
here my header.php
<div id="main_menu">
<div id="menu_blog"><button onclick="location.href='blog.html'"><h1>Trucs/Astuces</h1></button></div>
<div id="menu_contact"><button onclick="location.href='/contact.php'"><h1>Contact</h1></button></div>
<div id="menu_soumission"><button onclick="location.href='/soumission.php'"><h1>Soumission</h1></button></div>
<div id="menu_realisation"><button onclick="location.href='/realisations.php'">
<h1>Réalisations</h1></button></div>
<div id="menu_service"><button onclick="location.href='/services.php'">
<h1>Services</h1></button></div>
<div id="menu_a_propos"><button onclick="location.href='/a_propos.php'"><h1>L'entreprise</h1></button></div>
</div>

Answer 1

Simple way is use CSS
#yourbutton:hover{
background-color: red;
}
or
#yourbutton:active{
background-color: red;
}

Answer 2

Pass a GET value with each link
<div id="menu_contact"><button onclick="location.href='/contact.php?active=1'"><h1>Contact</h1></button></div>
check the value of active in the button
< button <?php if ($_GET['active']==1) echo 'class="active"'; ?> ..../>
then make a css style for active class
.active{
/*your style here*/
}

Answer 3

Your PHP page:
<div id="main_menu">
<div id="menu_blog">
<button onclick="location.href='/blog.html'" <?php if($_SERVER['REQUEST_URI'] == '/blog.html'){echo 'class="currentPage"'; }?>>
<h1>Trucs/Astuces</h1>
</button>
</div>
… and so on for each menu item ...
</div>
Your CSS:
button.currentPage{
background-color: red;
}

Answer 4

Short version:
add $current_location to every page and name it after it
<?php
$current_location = "a_propos" ;
?>
Check if location is correct, then change background color
<div id="main_menu">
<div id="menu_a_propos"><button <?php if ($current_location == "a_propos");?> style=" background-color: red;"<?php };?> onclick="location.href='/a_propos.php'"><h1>L'entreprise</h1></button></div>
</div>