/* ----------------------------- */ 
echo 'a'. 
$c = 'x'; 
echo 'b'; 
echo 'c';  
/* ----------------------------- */ 
 
echo 'This is the number: ' . 5 +7; exit; 
 
if (2 > 3);  { 
    echo '2 is greater than 3'; 
} 
 
// php wrong input date format 
echo strtotime('16/01/2013'); // ouput nothing 
 
$x = 7; 
echo ++$x; // add one and return x 
echo $x++; // return x and add one to x
 
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