Sort an array (a table) of associative arrays based on an secondary (sort_key) column name is a simple SQL request...
SELECT * FROM table ORDER BY sort_key ASC
The sortf family of PHP script functions uses a bubble sort method to order the table with equivalent results...
<?php
//###############################################################################################################
// Copyright MOTIF-Z Productions. All Rights Reserverd.
//###############################################################################################################
include_once ('/include/pragma.php');
use ('4.3.0');
//---------------------------------------------------------------------------------------------------------------
function sortby ($_0, $_1) {
//---------------------------------------------------------------------------------------------------------------
// syntax: int sortby (mixed valueA, mixed valueB)
// returns -1, 0, or 1 depending on whether valueA sorts less than, equal to, or greater than valueB...
return (($_0 == $_1) ? 0 : ($_0 < $_1) ? -1 : 1);
}
function sortby_a ($_0, $_1) { return (sortby ($_0, $_1)); }
function sortby_ai ($_0, $_1) { return (sortby (strtoupper ($_0), strtoupper ($_1))); }
function sortby_d ($_0, $_1) { return (sortby ($_1, $_0)); }
function sortby_di ($_0, $_1) { return (sortby (strtoupper ($_1), strtoupper ($_0))); }
//---------------------------------------------------------------------------------------------------------------
function sortf () {
//---------------------------------------------------------------------------------------------------------------
// syntax: array sortf (array table, string sort_key, function sort_by)
// returns an array sorted by the values of the sort_key column name...
$_es = array ();
list (
$_ds,
$_bx,
$_ip
) = func_get_args ();
$_ss = array_keys ($_ds);
for ($_bp = count ($_ss) - 1; $_bp > 0; $_bp--) {
for ($_sp = 0; $_sp < $_bp; $_sp++) {
if ($_ip ($_ds[$_ss[$_sp + 1]][$_bx], $_ds[$_ss[$_sp]][$_bx]) < 0) {
$_ax = $_ss[$_sp];
$_ss[$_sp] = $_ss[$_sp + 1];
$_ss[$_sp + 1] = $_ax;
}
}
}
foreach ($_ss as $_dx) {
$_es[$_dx] = $_ds[$_dx];
}
return ($_es);
}
function sortfa ($_0, $_1) { return (sortf ($_0, $_1, sortby_a )); }
function sortfai ($_0, $_1) { return (sortf ($_0, $_1, sortby_ai)); }
function sortfd ($_0, $_1) { return (sortf ($_0, $_1, sortby_d )); }
function sortfdi ($_0, $_1) { return (sortf ($_0, $_1, sortby_di)); }
//---------------------------------------------------------------------------------------------------------------
/* ORDER_BY:*/ {
//---------------------------------------------------------------------------------------------------------------
$_ds = array (
'_A' => array ( '_X' => 3, '_Y' => 'b', '_Z' => 'abc' ),
'_B' => array ( '_X' => 2, '_Y' => 'c', '_Z' => 'mno' ),
'_C' => array ( '_X' => 1, '_Y' => 'a', '_Z' => 'xyz' )
);
$_es = sortfa ($_ds, '_Y');
...
...
}
exit (0);
//###############################################################################################################
?>
order by dialect: javascript
Sort an array (a table) of associative arrays based on an secondary (sort_key) column name is a simple SQL request...
SELECT * FROM table ORDER BY sort_key ASC
The sortf family of JavaScript functions uses a bubble sort method to order the table with equivalent results...
<script type="text/javascript">
//<![CDATA[
<!--
//###############################################################################################################
// Copyright MOTIF-Z Productions. All Rights Reserverd.
//###############################################################################################################
//---------------------------------------------------------------------------------------------------------------
function sortby (_0, _1) {
//---------------------------------------------------------------------------------------------------------------
// syntax: int sortby (mixed valueA, mixed valueB)
// returns -1, 0, or 1 depending on whether valueA sorts less than, equal to, or greater than valueB...
return ((_0 == _1) ? 0 : (_0 < _1) ? -1 : 1);
}
function sortby_a (_0, _1) { return (sortby (_0, _1)); }
function sortby_ai (_0, _1) { return (sortby (_0.toUpperCase (), _1.toUpperCase ())); }
function sortby_d (_0, _1) { return (sortby (_1, _0)); }
function sortby_di (_0, _1) { return (sortby (_1.toUpperCase (), _0.toUpperCase ())); }
//---------------------------------------------------------------------------------------------------------------
function sortf () {
//---------------------------------------------------------------------------------------------------------------
// syntax: array sortf (array table, string sort_key, function sort_by)
// returns an array sorted by the values of the sort_key column name...
var _es = {};
var _ds = arguments[0];
var _bx = arguments[1];
var _ip = arguments[2];
var _ss = [];
for (var _dx in _ds) {
_ss.push (_dx);
}
for (var _bp = _ss.length - 1; _bp > 0; _bp--) {
for (var _sp = 0; _sp < _bp; _sp++) {
if (_ip (_ds[_ss[_sp + 1]][_bx], _ds[_ss[_sp]][_bx]) < 0) {
_ax = _ss[_sp];
_ss[_sp] = _ss[_sp + 1];
_ss[_sp + 1] = _ax;
}
}
}
for (var _dx in _ss) {
_es[_ss[_dx]] = _ds[_ss[_dx]];
}
return (_es);
}
function sortfa (_0, _1) { return (sortf (_0, _1, sortby_a )); }
function sortfai (_0, _1) { return (sortf (_0, _1, sortby_ai)); }
function sortfd (_0, _1) { return (sortf (_0, _1, sortby_d )); }
function sortfdi (_0, _1) { return (sortf (_0, _1, sortby_di)); }
//---------------------------------------------------------------------------------------------------------------
ORDER_BY: {
//---------------------------------------------------------------------------------------------------------------
var _ds = {
'_A' : { '_X' : 3, '_Y' : 'b', '_Z' : 'abc' },
'_B' : { '_X' : 2, '_Y' : 'c', '_Z' : 'mno' },
'_C' : { '_X' : 1, '_Y' : 'a', '_Z' : 'xyz' }
};
var _es = sortfa (_ds, '_Y');
...
...
}
//###############################################################################################################
// -->
//]]>
</script>
Sort an array (a table) of associative arrays based on an secondary (sort_key) column name is a simple SQL request...
SELECT * FROM table ORDER BY sort_key ASC
The sortf family of Perl script functions uses a bubble sort method to order the table with equivalent results...
#!/usr/local/bin/perl -T
#################################################################################################################
# Copyright MOTIF-Z Productions. All Rights Reserverd.
#################################################################################################################
use 5.004;
use strict;
# ---------------------------------------------------------------------------------------------------------------
sub sortby_a { return ($a cmp $b); }
sub sortby_ai { return (uc ($a) cmp uc ($b)); }
sub sortby_d { return ($b cmp $a); }
sub sortby_di { return (uc ($b) cmp uc ($a)); }
# ---------------------------------------------------------------------------------------------------------------
sub sortf {
# ---------------------------------------------------------------------------------------------------------------
# syntax: array sortf (array table, string sort_key, function sort_by)
# returns an array sorted by the values of the sort_key column name...
my $es;
(my (
$ds,
$bx,
$ip
)) = @_;
my $ss;
@{$ss} = keys (%{$ds});
for (my $bp = scalar (@{$ss}) - 1; $bp > 0; $bp--) {
for (my $sp = 0; $sp < $bp; $sp++) {
if ($ip ($ds->{$ss->[$sp + 1][$bx]}, $ds->{$ss->[$sp][$bx]}) < 0) {
$ax = $ss->[$sp];
$ss->[$sp] = $ss->[$sp + 1];
$ss->[$sp + 1] = $ax;
}
}
}
foreach $dx (@{$ss}) {
$es->{$dx} = $ds->{$dx};
}
return ($es);
}
sub sortfa ($ds, $bx) { return (sortf ($ds, $bx, sortby_a )); }
sub sortfai ($ds, $bx) { return (sortf ($ds, $bx, sortby_ai)); }
sub sortfd ($ds, $bx) { return (sortf ($ds, $bx, sortby_d )); }
sub sortfdi ($ds, $bx) { return (sortf ($ds, $bx, sortby_di)); }
//---------------------------------------------------------------------------------------------------------------
ORDER_BY: {
//---------------------------------------------------------------------------------------------------------------
my $ds = {
'_A' => { '_X' => 3, '_Y' => 'b', '_Z' => 'abc' },
'_B' => { '_X' => 2, '_Y' => 'c', '_Z' => 'mno' },
'_C' => { '_X' => 1, '_Y' => 'a', '_Z' => 'xyz' }
};
my $es = sortfa ($ds, '_Y');
...
...
}
exit (0);
#################################################################################################################
