[RESOLVED] Get the key from the array values that are in sequence

jackiw

What I'm trying to do is get the key from the array values that are in sequence, like 1,2,3, 4... or 7,8,9... I'm able to do it just with two keys as you can see here:

$spots = array("1|250x60","2|120x60","4|250x60","6|120x60","7|120x60","8|120x60");

$c=count($spots);

//First I explode each item on the array and divide them into 2 arrays, one for the spot number and the other for the banner size

$i=0;
foreach($spots as $key=>$value)
{
	$a=explode("|",$value);
	$nums[$i] = $a[0];
	$sizes[$i] = $a[1];
	$i++;
}

reset($nums);
reset($sizes);

for($i=0;$i<$c;$i++)
{
	//Here I check for the sequence
	if( ($nums[$i]+1) == @$nums[$i+1] ) 
	{ 
		print "Sequence: ".$nums[$i]."=>".$nums[$i+1]."<Br>"; 
		print "You can also combine spot ".$nums[$i]."(".$sizes[$i].") with spot ".$nums[$i+1]."(".$sizes[$i+1]."), having just one spot of ";

	$g=explode("x",$sizes[$i]);
	$g2=explode("x",$sizes[$i+1]);
	print $g[0] + $g2[0]."x".$g[1]."<br>";
}
}

If you guys can help me do it using my code or think in a better/different way to do it, please let me know.

Thanks a lot

superwormy

Not sure what you mean... but if you're looking to get the keys of an array, you might look at www.php.net/array_keys

DeadlySin3

<?php
# from
foreach($spots as $key=>$value)
{
    $a=explode("|",$value);
    $nums[$i] = $a[0];
    $sizes[$i] = $a[1];
    $i++;
} 

# to
foreach($spots as $spot) {
    foreach($spot as $key=$value) {

$a=explode("|",$value);
$nums[$i] = $a[0];
$sizes[$i] = $a[1];
$i++;
} 
}

?>

maybe?

jackiw

Both the replies didn't help... 🙁... if you run my code you'll see what I'm trying to accomplish. Anyone?

jackiw

Can anyone please help me on this? Thanks in advance

jackiw

problem solved... if anyone gets bumped into something similar to it, here's the code...

<?
$spots = array("1|250x60","2|120x60","4|250x60","6|120x60","7|120x60","8|120x60");

$i=0;
foreach($spots as $key=>$value)
{
    $a=explode("|",$value);
    $nums[$i] = $a[0];
    $sizes[$i] = $a[1];
    $i++;
}

reset($nums);
reset($sizes);

$prev = 0;
for ($x=0;$x<sizeof($nums);$x++) {
	$cur = $nums[$x];
	if (($x > 0) And (($cur - $prev) == 1)) {
	$arr[] = "$prev,$cur";
	}

$prev = $nums[$x];
}

$prev = "";
for ($x=0;$x<sizeof($arr);$x++) {
	list($first,$sec) = split(",", $arr[$x]);
	if (($x > 0) AND ($sec - $prev) == 1) {
	  $narr[] = $arr[$x-1] ."," .$sec;
	}
 	$narr[] = $arr[$x];
	$prev = $sec;
}

for ($x=0;$x<sizeof($narr);$x++)
	echo "Your options are: " .$narr[$x] ."<BR>";

?>