array_multisort()

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  • Schraalhans Keukenmeester
    #1

    array_multisort()

    I'm having a hard time getting to grips with this function.

    I have an array shaped like this:

    $dircontents[0]['filename'] ='index.html'
    $dircontents[0]['owner'] = 'www'
    $dircontents[0]['group'] = 'www'
    $dircontents[0]['type'] = 'file'

    $dircontents[1]['filename'] ='images'
    $dircontents[1]['owner'] = 'www'
    $dircontents[1]['group'] = 'www'
    $dircontents[1]['type'] = 'dir'

    etc.

    'type' can be any of {dir,file,link}

    How do I get the array sorted, alphabetically, first by type, then filename?
    My attempts sofar have lead to a seemingly unsorted array, not even
    close to anything recognizable. Is array_multisort () even what I should
    be looking for?

    Help appreciated!
    Sh.
    Tags: None
    • ZeldorBlat
      #2
      Re: array_multisort ()

      On Mar 27, 5:20 pm, Schraalhans Keukenmeester <bitbuc...@inva lid.spam>
      wrote:
      I'm having a hard time getting to grips with this function.
      >
      I have an array shaped like this:
      >
      $dircontents[0]['filename'] ='index.html'
      $dircontents[0]['owner'] = 'www'
      $dircontents[0]['group'] = 'www'
      $dircontents[0]['type'] = 'file'
      >
      $dircontents[1]['filename'] ='images'
      $dircontents[1]['owner'] = 'www'
      $dircontents[1]['group'] = 'www'
      $dircontents[1]['type'] = 'dir'
      >
      etc.
      >
      'type' can be any of {dir,file,link}
      >
      How do I get the array sorted, alphabetically, first by type, then filename?
      My attempts sofar have lead to a seemingly unsorted array, not even
      close to anything recognizable. Is array_multisort () even what I should
      be looking for?
      >
      Help appreciated!
      Sh.
      Try usort() instead:

      function cmp($a, $b) {
      if($a['type'] < $b['type'])
      return -1;
      elseif($a['type'] $b['type'])
      return 1;
      elseif($a['filename'] < $b['filename'])
      return -1;
      elseif($a['filename'] $b['filename'])
      return 1;
      else
      return 0;
      }

      usort($dirconte nts, 'cmp');

        Comment

        • Schraalhans Keukenmeester
          #3
          Re: array_multisort ()

          ZeldorBlat wrote:
          On Mar 27, 5:20 pm, Schraalhans Keukenmeester <bitbuc...@inva lid.spam>
          wrote:
          >I'm having a hard time getting to grips with this function.
          >>
          >I have an array shaped like this:
          >>
          >$dircontents[0]['filename'] ='index.html'
          >$dircontents[0]['owner'] = 'www'
          >$dircontents[0]['group'] = 'www'
          >$dircontents[0]['type'] = 'file'
          >>
          >$dircontents[1]['filename'] ='images'
          >$dircontents[1]['owner'] = 'www'
          >$dircontents[1]['group'] = 'www'
          >$dircontents[1]['type'] = 'dir'
          >>
          >etc.
          >>
          >'type' can be any of {dir,file,link}
          >>
          >How do I get the array sorted, alphabetically, first by type, then filename?
          >My attempts sofar have lead to a seemingly unsorted array, not even
          >close to anything recognizable. Is array_multisort () even what I should
          >be looking for?
          >>
          >Help appreciated!
          >Sh.
          >
          Try usort() instead:
          >
          function cmp($a, $b) {
          if($a['type'] < $b['type'])
          return -1;
          elseif($a['type'] $b['type'])
          return 1;
          elseif($a['filename'] < $b['filename'])
          return -1;
          elseif($a['filename'] $b['filename'])
          return 1;
          else
          return 0;
          }
          >
          usort($dirconte nts, 'cmp');
          >
          Great! That's what I needed indeed. Somewhere in the back of my head...
          Thanx Zeldor!

            Comment

            • Schraalhans Keukenmeester
              #4
              Re: array_multisort ()

              Schraalhans Keukenmeester wrote:
              ZeldorBlat wrote:
              >On Mar 27, 5:20 pm, Schraalhans Keukenmeester <bitbuc...@inva lid.spam>
              >wrote:
              >>I'm having a hard time getting to grips with this function.
              >>>
              >>I have an array shaped like this:
              >>>
              >>$dircontent s[0]['filename'] ='index.html'
              >>$dircontent s[0]['owner'] = 'www'
              >>$dircontent s[0]['group'] = 'www'
              >>$dircontent s[0]['type'] = 'file'
              >>>
              >>$dircontent s[1]['filename'] ='images'
              >>$dircontent s[1]['owner'] = 'www'
              >>$dircontent s[1]['group'] = 'www'
              >>$dircontent s[1]['type'] = 'dir'
              >>>
              >>etc.
              >>>
              >>'type' can be any of {dir,file,link}
              >>>
              >>How do I get the array sorted, alphabetically, first by type, then filename?
              >>My attempts sofar have lead to a seemingly unsorted array, not even
              >>close to anything recognizable. Is array_multisort () even what I should
              >>be looking for?
              >>>
              >>Help appreciated!
              >>Sh.
              >Try usort() instead:
              >>
              >function cmp($a, $b) {
              > if($a['type'] < $b['type'])
              > return -1;
              > elseif($a['type'] $b['type'])
              > return 1;
              > elseif($a['filename'] < $b['filename'])
              > return -1;
              > elseif($a['filename'] $b['filename'])
              > return 1;
              > else
              > return 0;
              >}
              >>
              >usort($dircont ents, 'cmp');
              >>
              Great! That's what I needed indeed. Somewhere in the back of my head...
              Thanx Zeldor!
              Had to rewrite it a little since I usesd strings. Final version, in case
              someone else likes to use it as well:

              function cmp($a, $b) {
              $retval = strcmp($a['type'],$b['type']);
              if ($retval === 0)
              $retval = strcmp($a['filename'],$b['filename']);
              return $retval;
              }
              usort($this->dircontents, 'cmp');

              Again, thanks for the pointer!

                Comment

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