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<?php
$a = 37;
$b = 42;
# Now call our C function with a bunch of callbacks
print "Trying some C callback functions\n";
print " a = $a\n";
print " b = $b\n";
print " ADD(a,b) = ". do_op($a,$b,example::ADD)."\n";
print " SUB(a,b) = ". do_op($a,$b,example::SUB)."\n";
print " MUL(a,b) = ". do_op($a,$b,example::MUL)."\n";
print "Here is what the C callback function objects look like in php\n";
print " ADD = " . example::ADD . "\n";
print " SUB = " . example::SUB . "\n";
print " MUL = " . example::MUL . "\n";
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