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# sort multi-dimensional array

 P: n/a Hi, does anyone know how i can sort a multi-dimensional array by a specific field ? for example i want to sort arr[m][n] where n=2, but i need the data of every array to follow that order. example array: arr arr arr arr arr arr arr arr arr arr arr arr Aug 25 '06 #1
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 P: n/a Balaskas Evaggelos wrote: Hi, does anyone know how i can sort a multi-dimensional array by a specific field ? for example i want to sort arr[m][n] where n=2, but i need the data of every array to follow that order. example array: arr arr arr arr arr arr arr arr arr arr arr arr You can use the array_multisort() function to do this. More info and a number of examples of useage can be found at : http://uk.php.net/manual/en/function...-multisort.php Aug 25 '06 #2

 P: n/a gb*******@googlemail.com wrote: Balaskas Evaggelos wrote: >Hi,does anyone know how i can sort a multi-dimensional arrayby a specific field ?for example i want to sort arr[m][n] where n=2,but i need the data of every array to follow that order.example array:arrarrarrarrarrarrarrarrarrarrarrarr You can use the array_multisort() function to do this. More info and a number of examples of useage can be found at : http://uk.php.net/manual/en/function...-multisort.php thanks for your anwser but the first thing i checked, before i wrote this post, was that url. The example are for multi-dimensional array of one-dimensional arrays. I can't find how i can sort a multi-dimensional array of array[m][n] and for a specific field example n=2. Aug 25 '06 #3

 P: n/a Balaskas Evaggelos wrote: thanks for your anwser but the first thing i checked, before i wrote this post, was that url. The example are for multi-dimensional array of one-dimensional arrays. I can't find how i can sort a multi-dimensional array of array[m][n] and for a specific field example n=2. Maybe I just am not understanding you correctly, but aren't they the same thing? In PHP: \$ar['m']['n'] = 1; is equivalent to: \$ar = array('m' =array('n' =1)); Both can be referenced as \$ar['m']['n']. Off the top of my head, the most relevant example from that php manual page would be Example 3. Sorting database results. It sounds like you want to essentially sort a 'table' of data by one of the columns. The concepts of that example should point you in the right direction. Unless, as I said, I am completely misunderstanding your question. Aug 25 '06 #4

 P: n/a mo*******************@yahoo.com wrote: Balaskas Evaggelos wrote: >thanks for your anwser but the first thing i checked,before i wrote this post, was that url.The example are for multi-dimensional array of one-dimensional arrays.I can't find how i can sort a multi-dimensional array of array[m][n]and for a specific field example n=2. Maybe I just am not understanding you correctly, but aren't they the same thing? In PHP: \$ar['m']['n'] = 1; is equivalent to: \$ar = array('m' =array('n' =1)); Both can be referenced as \$ar['m']['n']. Off the top of my head, the most relevant example from that php manual page would be Example 3. Sorting database results. It sounds like you want to essentially sort a 'table' of data by one of the columns. The concepts of that example should point you in the right direction. Unless, as I said, I am completely misunderstanding your question. maybe i don't write it correctly - bad english :) in the example 3 the multi-dimensional array breaks into two one-dimensional arrays to sort them. So the results is sorted for every separated array. i need the 2 arrays to be sorted only by the second field of the second array. And all the rest to be sorted according by this field. this is my array: arr arr arr arr arr arr arr arr arr arr arr arr .... .... i want to sort the arr be second element into the arr: arr[m], and everything else will follow this order. --- as m: 0,1,2,3,4,5,6,7,8,9,... as n: 0,1,2,3,4,5,6,7,8,9,... Aug 25 '06 #5

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