[SOLVED] array sort question...

[vbnullchar]

I have this array..

 

<?php
$arr = array(
array(4,5,6),
array(99,23,42),
array(112,282,131),
array(22,282,131),
array(42,1282,1131),
array(12,282,131),
array(14,2,3),
array('b1','b2','b3'),
array('a','a2','a3')
);
?>

 

I need to sort the first character of the first value... desired output should be like this...

 

<?php
$arr = array(
array('a','a2','a3'),
array('b1','b2','b3'),
array(12,282,131),
array(14,2,3),
array(112,282,131),
array(22,282,131),
array(4,5,6),
array(42,1282,1131),
array(99,23,42)
);
?>

 

meaning arrays with values starts with "1" goes together.. etc.. 

i tried array_multisort but doesnt solve it because after sorting the order will be 12,13,99,112, the right order is 12,14,112,99

 

thanks

[ToonMariner]

http://uk2.php.net/manual/en/function.array-multisort.php

[vbnullchar]

http://uk2.php.net/manual/en/function.array-multisort.php

 

array_multisort will not work, I want to sort the 1st character of the array values

[ToonMariner]

???

 

you sure? just use the dort string flag and it should be hunky dory - it may wel put numbers before characters but...

[vbnullchar]

this is the given array...

 

<?php
$arr = array(
   array(4,5,6),
   array(99,23,42),
   array(112,282,131),
   array(22,282,131),
   array(42,1282,1131),
   array(12,282,131),
   array(14,2,3),
   array('b1','b2','b3'),
   array('a','a2','a3')
);
?>

 

it doest matter if letters came first.. my concern is all the values with the same first characters goes together..

 

 

[vbnullchar]

okay I got it...

 

<?php

$csv1 = array(
array(4,5,6),
array(99,23,42),
array(112,282,131),
array(22,282,131),
array(42,1282,1131),
array(12,282,131),
array(14,2,3),
array('b1','b2','b3'),
array('a','a2','a3')
);

function __unset(&$arr){ unset($arr[0]); }

foreach($csv1 as $k => $value){ $v[] = array_merge((array) substr($value[0],0,1), $value ); }

array_multisort($v);
array_walk($v, "__unset");
print_r($v);