Routine to change Back Ground Color on each row os a table

[SundancerKid]

[COLOR=red] <tr bgcolor="<? if(bcmod($w_i,2)){echo "[/color][COLOR=#666666]grey[/color][COLOR=red]";}else {echo "[/color][COLOR=#0099ff]blue[/color][COLOR=red]";}?>"> [/color]

$w_i is the index I am using to determine what row I am on. 2 is a constant. BCMOD(x,y) will divide x by y. if it is divisable by 2 with no remainder then it is true and the color for the row would be grey, if there is a remainder then it is false then the color would be light blue.

builtin function -> BCMOD(index, value)

Red is the program
Grey is the True(Even Row) color
Light Blue is the False (Odd Row) color
Green are my comments

 

[sleipnir214]

Just keep in mind that not all PHP installations have the BCMath extensions available. But you don't need bcmod(), because PHP provides an intrinsic modulo operator: "%"

print '<tr bgcolor="';
if($w_i % 2 == 0)
{
   echo "grey";
}
else
{
   echo "blue";
}

print '">';

(Context-switching and inline function calls inside HTML output reduce readability.)

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