Starting an array from an x number and relooping back

[rbrown]

I have an array with 40 elements and I want to be able to start at what ever element and have it loop though the array outputting to another array and have it continue back around to the where it started.

 

What is happening is if I set, the "start" at 5, the "count" at 40, and then add "start plus count" together, and loop through using the "start plus count" as the stop number in the for loop, it returns only 35 elements.

 

What do I have to do to get it to loop back around?

 

Thanks,

[Barand]

<?php
$data = range(1,40);
$output = array();

$start = 5;
$k = count ($data);

for ($i=$start-1; $i < $k; $i++) $output[] = $data[$i];
for ($i=0; $i < $start-1; $i++) $output[] = $data[$i];

// check results
echo '<pre>', print_r($output, true), '</pre>';
?>

[Barand]

or

 

<?php
$data = range(1,40);
$output = array();

$start = 5;

$output = array_merge (array_slice($data, $start-1), array_slice($data, 0, $start-1));

// check results
echo '<pre>', print_r($output, true), '</pre>';
?>

[rbrown]

Sorry, That's not going to work... I should have told you what the array contains.

 

the keys are alpha numeric and data is numbers. So you can't range the array.

It can look something like this example:

$test_start['Q']='18';$test_start['q']='19';$test_start['P']='20';
$test_start['p']='21';$test_start['O']='22';$test_start['o']='23';
$test_start['N']='24';$test_start['n']='25';$test_start['m']='26';
$test_start['M']='27';$test_start['L']='28';$test_start['l']='29';
$test_start['k']='30';$test_start['K']='31';$test_start['j']='32';
$test_start['J']='33';$test_start['I']='34';$test_start['i']='35';
$test_start['h']='37';$test_start['<']='55';$test_start['+']='56';
$test_start['~']='57';$test_start['}']='58';$test_start['{']='59';
$test_start['`']='60';$test_start['_']='61';$test_start['^']='62';
$test_start[']']='63';$test_start['[']='64';$test_start['@']='65';
$test_start['?']='66';$test_start[':']='67';$test_start['.']='69';
$test_start[',']='70';$test_start['*']='71';$test_start[')']='72';

etc...

 

So how do I do it with that type of data?

Thanks,

 

 

 

[Barand]

try the second version that I posted

[rbrown]

beauty...

However my total count is off by 1...

I have to run, but I'll figure it out when I get back.

 

Thanks,

[rbrown]

I figured it out...

typo...

Had two of the same keys with different elements

 

Thanks for you help...