note 84667 deleted from control-structures.for by danbrown

Note Submitter: Anonymous ---- I have noticed an oddity with the for construct. This code will *not* work as expected: $minimum = 1; $maximum = 5; for ($i=$minimum; $i<$maximum; $i++) { echo "This is iteration ".$i."\n"; } This will output the following (in an infinite loop): This is iteration 1 This is iteration 1 This is iteration 1 ... I assume this is because variables are not 'expressions', although I can't find any documentation that would explain why this does not work. To fix this, you can put double-quotes around the variables, like this: $minimum = 1; $maximum = 5; for ($i="$minimum"; $i<"$maximum"; $i++) { echo "This is iteration ".$i."\n"; } This results in the expected output: This is iteration 1 This is iteration 2 This is iteration 3 This is iteration 4 This is iteration 5