note 106318 added to function.array-combine

I needed to read CSV files into associative arrays with column headers as keys. Then I ran into a problem when you have empty columns at the end of a row because array_combine returns false if both arrays don't have the same number of elements. This function based on quecoder at gmail's combine_arr() below allowed me to pad either array or not when parsing my CSVs to arrays. $a is the array of header columns and $b is an array of the current row retrieved with fgetcsv() <?php function array_combine_special($a, $b, $pad = TRUE) { $acount = count($a); $bcount = count($b); // more elements in $a than $b but we don't want to pad either if (!$pad) { $size = ($acount > $bcount) ? $bcount : $acount; $a = array_slice($a, 0, $size); $b = array_slice($b, 0, $size); } else { // more headers than row fields if ($acount > $bcount) { $more = $acount - $bcount; // how many fields are we missing at the end of the second array? // Add empty strings to ensure arrays $a and $b have same number of elements $more = $acount - $bcount; for($i = 0; $i < $more; $i++) { $b[] = ""; } // more fields than headers } else if ($acount < $bcount) { $more = $bcount - $acount; // fewer elements in the first array, add extra keys for($i = 0; $i < $more; $i++) { $key = 'extra_field_0' . $i; $a[] = $key; } } } return array_combine($a, $b); } ?> ---- Server IP: 69.147.83.197 Probable Submitter: 83.244.244.5 ---- Manual Page -- http://www.php.net/manual/en/function.array-combine.php Edit -- https://master.php.net/note/edit/106318 Del: integrated -- https://master.php.net/note/delete/106318/integrated Del: useless -- https://master.php.net/note/delete/106318/useless Del: bad code -- https://master.php.net/note/delete/106318/bad+code Del: spam -- https://master.php.net/note/delete/106318/spam Del: non-english -- https://master.php.net/note/delete/106318/non-english Del: in docs -- https://master.php.net/note/delete/106318/in+docs Del: other reasons-- https://master.php.net/note/delete/106318 Reject -- https://master.php.net/note/reject/106318 Search -- https://master.php.net/manage/user-notes.php