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How can I split the array as 4 rows per line?

I have comma separated values as beblow in array

$array="IAM-00001-04684.jpg,IAM-00001-04685.jpg,IAM-00001-04686.jpg,IAM-00001-04687.jpg,IAM-00002-04688.jpg,IAM-00002-04689.jpg,IAM-00002-04690.jpg,IAM-00002-04691.jpg,IAM-00003-04692.jpg,IAM-00003-04693.jpg,IAM-00003-04694.jpg,IAM-00003-04695.jpg,IAM-00004-04696.jpg,IAM-00004-04697.jpg,IAM-00004-04698.jpg,IAM-00004-04699.jpg,IAM-00005-04700.jpg,IAM-00005-04701.jpg,IAM-00005-04702.jpg,IAM-00005-04703.jpg";

I want to split & print on the page the above as below (just in a row 4 each like), if possible remove end "," on the 4th value

IAM-00001-04684.jpg,IAM-00001-04685.jpg,IAM-00001-04686.jpg,IAM-00001-04687.jpg
IAM-00002-04688.jpg,IAM-00002-04689.jpg,IAM-00002-04690.jpg,IAM-00002-04691.jpg
IAM-00003-04692.jpg,IAM-00003-04693.jpg,IAM-00003-04694.jpg,IAM-00003-04695.jpg
IAM-00004-04696.jpg,IAM-00004-04697.jpg,IAM-00004-04698.jpg,IAM-00004-04699.jpg
IAM-00005-04700.jpg,IAM-00005-04701.jpg,IAM-00005-04702.jpg,IAM-00005-04703.jpg

Please help.

Thanks
0
Loganathan Natarajan
Asked:
Loganathan Natarajan
3 Solutions
 
Ray PaseurCommented:
<?php // demo/temp_loganathan.php
/**
 * https://www.experts-exchange.com/questions/28980205/How-can-I-split-the-array-as-4-rows-per-line.html
 *
 * http://php.net/manual/en/function.array-chunk.php
 */
error_reporting(E_ALL);
echo '<pre>';

// TEST DATA FROM THE POST AT E-E
$array="IAM-00001-04684.jpg,IAM-00001-04685.jpg,IAM-00001-04686.jpg,IAM-00001-04687.jpg,IAM-00002-04688.jpg,IAM-00002-04689.jpg,IAM-00002-04690.jpg,IAM-00002-04691.jpg,IAM-00003-04692.jpg,IAM-00003-04693.jpg,IAM-00003-04694.jpg,IAM-00003-04695.jpg,IAM-00004-04696.jpg,IAM-00004-04697.jpg,IAM-00004-04698.jpg,IAM-00004-04699.jpg,IAM-00005-04700.jpg,IAM-00005-04701.jpg,IAM-00005-04702.jpg,IAM-00005-04703.jpg";

// ACTIVATE THIS TO SHOW THE TEST DATA (IT IS NOT AN ARRAY - IT IS A STRING)
// print_r($array);

// MAKE THE STRING INTO AN ARRAY
$array = explode(',', $array);

// MAKE A TWO-DIMENSIONAL MATRIX
$matrix = array_chunk($array,4);

// MAKE A PRINTED REPRESENTATION TO MATCH THE QUESTION
$out = NULL;
foreach ($matrix as $arr)
{
    $out .= PHP_EOL . implode(',', $arr);
}
echo $out;

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1
 
Chris HarteThaumaturgeCommented:
array_chunk() is a new one on me, so I did it the old fashioned way

echo "<pre>";

$array = "IAM-00001-04684.jpg,IAM-00001-04685.jpg,IAM-00001-04686.jpg,IAM-00001-04687.jpg,IAM-00002-04688.jpg,IAM-00002-04689.jpg,IAM-00002-04690.jpg,IAM-00002-04691.jpg,IAM-00003-04692.jpg,IAM-00003-04693.jpg,IAM-00003-04694.jpg,IAM-00003-04695.jpg,IAM-00004-04696.jpg,IAM-00004-04697.jpg,IAM-00004-04698.jpg,IAM-00004-04699.jpg,IAM-00005-04700.jpg,IAM-00005-04701.jpg,IAM-00005-04702.jpg,IAM-00005-04703.jpg";

$arraylets =  explode (",", $array);

$x = 0;

foreach ($arraylets as $output)
{
    echo $output;
    
    if ($x != 3)
    {
        echo ", ";
        $x++;
    }
    else
    {
        echo "\n";
        $x = 0;
    }        
}

Open in new window

1
 
Ray PaseurCommented:
@Chris: Yes, there are really a lot of PHP functions for dealing with arrays.  I counted 79, which is more than the count of all of the instructions in the first programming language I learned!
1
 
Julian HansenCommented:
Just for kicks - a single pass solution
<?php
$array="IAM-00001-04684.jpg,IAM-00001-04685.jpg,IAM-00001-04686.jpg,IAM-00001-04687.jpg,IAM-00002-04688.jpg,IAM-00002-04689.jpg,IAM-00002-04690.jpg,IAM-00002-04691.jpg,IAM-00003-04692.jpg,IAM-00003-04693.jpg,IAM-00003-04694.jpg,IAM-00003-04695.jpg,IAM-00004-04696.jpg,IAM-00004-04697.jpg,IAM-00004-04698.jpg,IAM-00004-04699.jpg,IAM-00005-04700.jpg,IAM-00005-04701.jpg,IAM-00005-04702.jpg,IAM-00005-04703.jpg";
$count = 0;
for($i = 0; $i < strlen($array); $i++) {
  if ($array[$i] == ',') {
    if (++$count % 4 == 0) {
      $array[$i] = "\n";
    }
  }
}
echo "<pre>" . print_r($array, true) . "</pre>";

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1
 
Loganathan NatarajanLAMP DeveloperAuthor Commented:
Thanks to all
0
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