string and integer comparison

I must compare two variabiles in ha post input: the fiel $CAMPO1 contains the value 019
and the field $CAMPO2 contains the value 19

I compare the two field with the following script

if($CAMPO1 == $CAMPO2)
{
print("CAMPO1 is equal to CAMPO2);
}
else
{
print("CAMPO1 is NOT equal to CAMPO2);

}

The strange is that PHP answer always that 19 is equal to 019; what can I do in order to have the correct answer : 19 IS not EQUAL TO 019

THANKS IN ADVACE FOR YOUR KIND HELP

Alessndro

Use an absolute value comparison operator or the three equal sign operator.

The problem with the original double equal sign is that PHPs automatic type conversion takes effect and converts both values to a numeric value.

if($CAMPO1 === $CAMPO2)
{
print("CAMPO1 is equal to CAMPO2");
}
else
{
print("CAMPO1 is NOT equal to CAMPO2");

}

use if(int($FOO) == int($bar))