Get min and max value in PHP Array

Question

I have an array like this     array  0       array        id      20110209172713        Date      2011-02-09        Weight      200          1       array        id      20110209172747        Date      2011-02-09        Weight      180          2       array        id      20110209172827        Date      2011-02-09        Weight      175          3       array        id      20110211204433        Date      2011-02-11        Weight      195             I need to extract minimal and maximal Weight values   In this example    min value   175   max value   200  Any help on how to do this   Thank you

User · Answer

foreach   array as  k   gt   v       tArray  k     v  Weight       min value   min  tArray    max value   max  tArray

User · Answer

Location Category array   array 5 50 7 6 1 7 7 30 50 50 50 40 50 9 9 11 2 2 2 2 2 11 21 21 1 12 1 5    asort  Location Category array    count array count values  Location Category array    Counts the values in the array  returns associatve array         print r  count            maxsize   0           maxvalue   0          foreach  count as  a  gt  y               echo   lt br  gt    a      y              if  y gt   maxvalue                    maxvalue    y                  if  a gt  maxsize                        maxsize    a                                                 echo   lt br  gt max      maxsize

User · Answer

How about without using predefined function like min or max     arr    4 5 6 7 8 2 9 1    val    arr 0    n   count  arr    for  i 1  i lt  n  i      if  val lt  arr  i          val    val            else        val    arr  i       print  val

User · Answer

lt  php   array   array  0   gt     array        id    gt   20110209172713        Date    gt   2011-02-09        Weight    gt   200          1   gt     array        id    gt   20110209172747        Date    gt   2011-02-09        Weight    gt   180          2   gt     array        id    gt   20110209172827        Date    gt   2011-02-09        Weight    gt   175          3   gt     array        id    gt   20110211204433        Date    gt   2011-02-11        Weight    gt   195            foreach   array as  key   gt   value       result  key     value  Weight       min   min  result    max   max  result    echo   The array in Minnumum number     min   lt br  gt    echo   The array in Maximum  number     max   lt br  gt      gt

User · Answer

print fast five maximum and minimum number from array without use of sorting array in php  -   lt  php     array   explode      78  60  62  68  71  68  73  85  66  64  76  63  81  76  73    68  72  73  75  65  74  63  67  65  64  68  73  75  79  73       t 0     l count  array     foreach  array as  v          t     v          avg   t  l     echo  average Temperature is      avg            echo   lt br gt List of seven highest temperatsures  -     m 0   max  array    for  i 1   i  lt 7    i        m  i  max array diff  array  m      foreach   m as  key   gt   value        echo       value     echo   lt br gt  List of seven lowest temperatures       mi 0   min  array    for  i 1   i  lt 7    i        mi  i  min array diff  array  mi       foreach   mi as  key   gt   value        echo       value       gt

User · Answer

num   array  0   gt  array   id    gt   20110209172713    Date    gt   2011-02-09    Weight    gt   200              1   gt  array   id    gt   20110209172747    Date    gt   2011-02-09    Weight    gt   180              2   gt  array   id    gt   20110209172827    Date    gt   2011-02-09    Weight    gt   175              3   gt  array   id    gt   20110211204433    Date    gt   2011-02-11    Weight    gt   195          foreach  num as  key   gt   val                                           weight      val  Weight                echo max  weight        echo min  weight

User · Answer

It is interesting to note that both the solutions above use extra storage in form of arrays  first one two of them and second one uses one array  and then you find min and max using  extra storage  array  While that may be acceptable in real programming world  who gives a two bit about  extra  storage   it would have got you a  C  in programming 101   The problem of finding min and max can easily be solved with just two extra memory slots    first   intval  input 0   Weight      min    first    max    first    foreach  input as  data         weight   intval  data  Weight          if  weight  lt    min              min     weight              if  weight  gt   max              max     weight             echo   min    min and max    max  n

User · Answer

For the people using PHP 5 5  this can be done a lot easier with array column  Not need for those ugly array maps anymore   How to get a max value    highest weight   max array column  details   Weight       How to get the min value   lowest weight   min array column  details   Weight

User · Answer

Option 1  First you map the array to get those numbers  and not the full details     numbers   array column  array   weight     Then you get the min and max    min   min  numbers    max   max  numbers     Option 2   Only if you don t have PHP 5 5 or better  The same as option 1  but to pluck the values  use array map    numbers   array map function  details      return  details  Weight        array     Option 3   Option 4  If you only need a min OR max  array reduce   might be faster    min   array reduce  array  function  min   details      return min  min   details  weight        PHP INT MAX     This does more min  s  but they re very fast  The PHP INT MAX is to start with a high  and get lower and lower  You could do the same for  max  but you d start at 0  or -PHP INT MAX

[php] Get min and max value in PHP Array

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