CODE EXAMPLE FOR PHP

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How to make check all and uncheck all with jquery
HTML
<input type="checkbox" id="checkAll">Select All

<input type="checkbox" class="candidates">Ola
<input type="checkbox" class="candidates">Brainwave
<input type="checkbox" class="candidates">Mubarak
<input type="checkbox" class="candidates">Atom Bear

JS
$("#checkAll").click(function(){
	$('.candidates').not(this).prop('checked', this.checked);
});