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  1. <?php
  2.  
  3. $data = [
  4. 			"lut_avy_aspect" => 				["description" => "Avalanche Obs Aspect List", 			"key" => "code",		"label" => "label",			"sortorder" => "listorder"],
  5. 			"lut_boolean" => 					["description" => "Boolean Data",			 			"key" => "code",		"label" => "label",			"sortorder" => "listorder"],
  6. 			"lut_avy_bedsurface" => 			["description" => "Avalanche Bed Surface Type", 		"key" => "code",		"label" => "code,label",	"sortorder" => "listorder"],
  7. 			"lut_avy_paths" => 					["description" => "Avalanche Paths", 					"key" => "code",		"label" => "label",			"sortorder" => "listorder"],
  8. 			"lut_avy_size_destructiveforce" => 	["description" => "Avalanche Destructive Force", 		"key" => "code",		"label" => "code,label",	"sortorder" => "listorder"],
  9. 			"lut_avy_size_relativetopath" => 	["description" => "Avalanche Relative Path Size", 		"key" => "code",		"label" => "label",			"sortorder" => "listorder"],
  10. 			"lut_avy_startzone_horiz" => 		["description" => "Start Zone Horizontal Measure", 		"key" => "code",		"label" => "code,label",	"sortorder" => "listorder"],
  11. 			"lut_avy_startzone_vert" => 		["description" => "Start Zone Vertical Measure", 		"key" => "code",		"label" => "code,label",	"sortorder" => "listorder"],
  12. 			"lut_avy_termdebris_detailed" => 	["description" => "Avalanche Debris (Detailed)", 		"key" => "code",		"label" => "code,label",	"sortorder" => "listorder"],
  13. 			"lut_avy_termdebris_long" => 		["description" => "Long Avalanche Debris", 				"key" => "code",		"label" => "code,label",	"sortorder" => "listorder"],
  14. 			"lut_avy_termdebris_short" => 		["description" => "Short Avalanche Debris", 			"key" => "code",		"label" => "code,label",	"sortorder" => "listorder"],
  15. 			"lut_avy_terminusmoisture" => 		["description" => "Avalanche Terminus Moisture", 		"key" => "code",		"label" => "label",			"sortorder" => "listorder"],
  16. 			"lut_avy_triggers" => 				["description" => "Avalanche Trigger Types", 			"key" => "code",		"label" => "code,label",	"sortorder" => "code"],
  17. 			"lut_avy_triggers_humanmod" => 		["description" => "Human Modified Triggers", 			"key" => "code",		"label" => "label",			"sortorder" => "listorder"],
  18. 			"lut_avy_trigtypes" => 				["description" => "Avalanche Trigger Types", 			"key" => "code",		"label" => "label",			"sortorder" => "listorder"],
  19. 			"lut_avy_types" => 					["description" => "Avalanche Types", 					"key" => "code",		"label" => "label",			"sortorder" => "listorder"],
  20. 			"lut_obs_observers" => 				["description" => "Observer List", 						"key" => "observer_id", "label" => "obs_lname", 	"sortorder" => "observer_id"],
  21. 			"lut_obs_seasons" => 				["description" => "Observed Seasons", 					"key" => "season_id", 	"label" => "season_text",	"sortorder" => "season_text"],
  22. 			"lut_wx_airtemptrends" => 			["description" => "Air Temperature Trends", 			"key" => "code",		"label" => "label",			"sortorder" => "listorder"],
  23. 			"lut_wx_preciprate" => 				["description" => "Precipitation Rates", 				"key" => "code",		"label" => "label",			"sortorder" => "listorder"],
  24. 			"lut_wx_preciprate_rain" => 		["description" => "Rain Precipitation Rate", 			"key" => "code",		"label" => "label",			"sortorder" => "listorder"],
  25. 			"lut_wx_preciprate_snow" => 		["description" => "Snow Precipitation Rate", 			"key" => "code",		"label" => "label",			"sortorder" => "listorder"],
  26. 			"lut_wx_preciptype" => 				["description" => "Precipitation Type", 				"key" => "code",		"label" => "label",			"sortorder" => "listorder"],
  27. 			"lut_wx_pressuretrends" => 			["description" => "Pressure Trends", 					"key" => "code",		"label" => "label",			"sortorder" => "listorder"],
  28. 			"lut_wx_skyconditions" => 			["description" => "Sky Conditions", 					"key" => "code",		"label" => "label",			"sortorder" => "listorder"],
  29. 			"lut_wx_snow_ground" => 			["description" => "Ground Snow Conditions", 			"key" => "code",		"label" => "label",			"sortorder" => "listorder"],
  30. 			"lut_wx_snow_surface" => 			["description" => "Surface Snow Conditions", 			"key" => "code",		"label" => "label",			"sortorder" => "listorder"],
  31. 			"lut_wx_weatherlocations" => 		["description" => "Weather Observation Locations", 		"key" => "code",		"label" => "label",			"sortorder" => "listorder"],
  32. 			"lut_wx_wind_blowingridgetops" => 	["description" => "Ridgetop Wind Blowing Conditions", 	"key" => "code",		"label" => "label",			"sortorder" => "listorder"],
  33. 			"lut_wx_wind_snowdirection" => 		["description" => "Snow Wind Direction", 				"key" => "code",		"label" => "label",			"sortorder" => "listorder"],
  34. 			"lut_wx_wind_speedestimates" => 	["description" => "Estimated Wind Speeds", 				"key" => "code",		"label" => "label",			"sortorder" => "listorder"]
  35. 		];
  36.  
  37. usort($data, make_comparer('name'));
  38. print_r($data);
  39.  
  40.  
  41. function make_comparer() {
  42.     // Normalize criteria up front so that the comparer finds everything tidy
  43.     $criteria = func_get_args();
  44.     foreach ($criteria as $index => $criterion) {
  45.         $criteria[$index] = is_array($criterion)
  46.             ? array_pad($criterion, 3, null)
  47.             : array($criterion, SORT_ASC, null);
  48.     }
  49.  
  50.     return function($first, $second) use ($criteria) {
  51.         foreach ($criteria as $criterion) {
  52.             // How will we compare this round?
  53.             list($column, $sortOrder, $projection) = $criterion;
  54.             $sortOrder = $sortOrder === SORT_DESC ? -1 : 1;
  55.  
  56.             // If a projection was defined project the values now
  57.             if ($projection) {
  58.                 $lhs = call_user_func($projection, $first[$column]);
  59.                 $rhs = call_user_func($projection, $second[$column]);
  60.             }
  61.             else {
  62.                 $lhs = $first[$column];
  63.                 $rhs = $second[$column];
  64.             }
  65.  
  66.             // Do the actual comparison; do not return if equal
  67.             if ($lhs < $rhs) {
  68.                 return -1 * $sortOrder;
  69.             }
  70.             else if ($lhs > $rhs) {
  71.                 return 1 * $sortOrder;
  72.             }
  73.         }
  74.  
  75.         return 0; // tiebreakers exhausted, so $first == $second
  76.     };
  77. }
  78.  
Success #stdin #stdout #stderr 0.03s 26072KB
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stdin
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Standard input is empty
stdout
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Array
(
    [0] => Array
        (
            [description] => Avalanche Obs Aspect List
            [key] => code
            [label] => label
            [sortorder] => listorder
        )

    [1] => Array
        (
            [description] => Observer List
            [key] => observer_id
            [label] => obs_lname
            [sortorder] => observer_id
        )

    [2] => Array
        (
            [description] => Snow Wind Direction
            [key] => code
            [label] => label
            [sortorder] => listorder
        )

    [3] => Array
        (
            [description] => Ridgetop Wind Blowing Conditions
            [key] => code
            [label] => label
            [sortorder] => listorder
        )

    [4] => Array
        (
            [description] => Weather Observation Locations
            [key] => code
            [label] => label
            [sortorder] => listorder
        )

    [5] => Array
        (
            [description] => Surface Snow Conditions
            [key] => code
            [label] => label
            [sortorder] => listorder
        )

    [6] => Array
        (
            [description] => Ground Snow Conditions
            [key] => code
            [label] => label
            [sortorder] => listorder
        )

    [7] => Array
        (
            [description] => Sky Conditions
            [key] => code
            [label] => label
            [sortorder] => listorder
        )

    [8] => Array
        (
            [description] => Pressure Trends
            [key] => code
            [label] => label
            [sortorder] => listorder
        )

    [9] => Array
        (
            [description] => Precipitation Type
            [key] => code
            [label] => label
            [sortorder] => listorder
        )

    [10] => Array
        (
            [description] => Snow Precipitation Rate
            [key] => code
            [label] => label
            [sortorder] => listorder
        )

    [11] => Array
        (
            [description] => Rain Precipitation Rate
            [key] => code
            [label] => label
            [sortorder] => listorder
        )

    [12] => Array
        (
            [description] => Precipitation Rates
            [key] => code
            [label] => label
            [sortorder] => listorder
        )

    [13] => Array
        (
            [description] => Air Temperature Trends
            [key] => code
            [label] => label
            [sortorder] => listorder
        )

    [14] => Array
        (
            [description] => Observed Seasons
            [key] => season_id
            [label] => season_text
            [sortorder] => season_text
        )

    [15] => Array
        (
            [description] => Avalanche Types
            [key] => code
            [label] => label
            [sortorder] => listorder
        )

    [16] => Array
        (
            [description] => Boolean Data
            [key] => code
            [label] => label
            [sortorder] => listorder
        )

    [17] => Array
        (
            [description] => Avalanche Trigger Types
            [key] => code
            [label] => label
            [sortorder] => listorder
        )

    [18] => Array
        (
            [description] => Human Modified Triggers
            [key] => code
            [label] => label
            [sortorder] => listorder
        )

    [19] => Array
        (
            [description] => Avalanche Trigger Types
            [key] => code
            [label] => code,label
            [sortorder] => code
        )

    [20] => Array
        (
            [description] => Avalanche Terminus Moisture
            [key] => code
            [label] => label
            [sortorder] => listorder
        )

    [21] => Array
        (
            [description] => Short Avalanche Debris
            [key] => code
            [label] => code,label
            [sortorder] => listorder
        )

    [22] => Array
        (
            [description] => Long Avalanche Debris
            [key] => code
            [label] => code,label
            [sortorder] => listorder
        )

    [23] => Array
        (
            [description] => Avalanche Debris (Detailed)
            [key] => code
            [label] => code,label
            [sortorder] => listorder
        )

    [24] => Array
        (
            [description] => Start Zone Vertical Measure
            [key] => code
            [label] => code,label
            [sortorder] => listorder
        )

    [25] => Array
        (
            [description] => Start Zone Horizontal Measure
            [key] => code
            [label] => code,label
            [sortorder] => listorder
        )

    [26] => Array
        (
            [description] => Avalanche Relative Path Size
            [key] => code
            [label] => label
            [sortorder] => listorder
        )

    [27] => Array
        (
            [description] => Avalanche Destructive Force
            [key] => code
            [label] => code,label
            [sortorder] => listorder
        )

    [28] => Array
        (
            [description] => Avalanche Paths
            [key] => code
            [label] => label
            [sortorder] => listorder
        )

    [29] => Array
        (
            [description] => Avalanche Bed Surface Type
            [key] => code
            [label] => code,label
            [sortorder] => listorder
        )

    [30] => Array
        (
            [description] => Estimated Wind Speeds
            [key] => code
            [label] => label
            [sortorder] => listorder
        )

)
stderr
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https://ideone.com/eYs64l
Example #1: sort by name
language:
PHP (php 7.3.5)
created:
1 day ago
visibility:
public

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