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for ($i = $latestyear; $i == 2007; $i = $i - 1){

 

$latestyear is 2008 (tested this) and hence the loop should run once, except it doesn't run at all (varified by echo on the next line)

when the exit condition is removed the loop runs

setting $latestyear to a higher value does not help

 

I believe the problem to be in that line somewhere

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for ($i = $latestyear; $i == 2007; $i = $i - 1){

 

$latestyear is 2008 (tested this) and hence the loop should run once, except it doesn't run at all (varified by echo on the next line)

when the exit condition is removed the loop runs

setting $latestyear to a higher value does not help

 

I believe the problem to be in that line somewhere

 

You formatted it improperly.  Just use a while statement for that, it's easier.

$olderyear = $latestyear

while ($olderyear >= 2007) {

//do some stuff

if ($olderyear == 2007) {

  //do some stuff

}

$olderyear--;

}

 

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