PHPExcel conditionally formatting a range with a formula - php

Question

I have the following code:
$vOffset = 2;
$offset = 6;
$formatRows = 100;
$formatColumns = 100;
//set conditional formatting in place
for($row=$vOffset;$i<$formatRows;$row++){
for($col=$offset+1;$col<$formatColumns;$col+3){
//prepare conditional styles
//if verbal is bigger
$conditionalStyle_RED = new PHPExcel\Style_Conditional();
$conditionalStyle_RED->setConditionType(PHPExcel\Style_Conditional::CONDITION_CELLIS);
$conditionalStyle_RED->addCondition(
"=" . $this->coordinates($col, $row) . " > " . $this->coordinates($col+1,$row)
);
$conditionalStyle_RED->getStyle()->getFont()->getColor()->setARGB(PHPExcel\Style_Color::COLOR_RED);
array_push($conditionalStyles, $conditionalStyle_RED);
$this->getActiveSheet()
->getStyle($this->coordinates($col, $row) . ':' . $this->coordinates($col+1, $row))
->setConditionalStyles($conditionalStyles);
}
}
Where I attempt to set a conditional style with the formula akin to:
=A1 > A3
It isn't yet working. Anyone know how to accomplish this?

Answer 1

Quite a late response, but I have been looking through the internet for a similar issue. Eventually I solved it. Incase people in the future might come across this problem I will note down a few things.
I have been struggling with the same kind of issue and I managed to solve it. What you want is to insert a formula into the conditional formatting. This sounds trickier than it actually is.
For your specific piece of code this should most likely work.
$vOffset = 2;
$offset = 6;
$formatRows = 100;
$formatColumns = 100;
//set conditional formatting in place
for($row=$vOffset;$i<$formatRows;$row++){
for($col=$offset+1;$col<$formatColumns;$col+3){
//prepare conditional styles
//if verbal is bigger
$conditionalStyle_RED = new PHPExcel\Style_Conditional();
$conditionalStyle_RED->setConditionType(PHPExcel\Style_Conditional::CONDITION_EXPRESSION);
$conditionalStyle_RED->setConditions(array("(" . $this->coordinates($col, $row) . " > " . $this->coordinates($col+1,$row) . ")"));
$conditionalStyle_RED->getStyle()->getFont()->getColor()->setARGB(PHPExcel\Style_Color::COLOR_RED);
array_push($conditionalStyles, $conditionalStyle_RED);
$this->getActiveSheet()
->getStyle($this->coordinates($col, $row) . ':' . $this->coordinates($col+1, $row))
->setConditionalStyles($conditionalStyles);
}
}
The "condition_expression" is used in order to place a formula inside a conditional format. As far as I was able to figure out the only way to implement a formula is by using the "setConditions". With this you can give an array of strings, with each string being a formula.
In your code this would result in the color of red when the first coordinate is bigger than the second one.
Now back to your code, I haven't tested it so you might want to tweak a few values, but this should at least push you towards the right direction. Good luck mate!