- array_diff: documentation ( source)
<?php
$a = Array (
0 => 'there is bald spot on the inside or outside of tyre',
1 => 'uneven tyre wear'
);
$b = Array (
0 => 'uneven tyre wear',
1 => 'there is bald spot on the inside or outside of tyre'
);
if(count(array_diff($a,$b)) == 0){
echo "both array are identical";
}