CSV Export/Import with PHPExcel

Question

Could you please guide me or provide me with some sample codes for performing CSV export and import using the PHPExcel library?

Excel export and import is fine but I need CSV export/import as well. I have other means of CSV export and import, but can it be done via PHPExcel also?

Answer 1

To import a CSV file into a PHPExcel object

$inputFileType = 'CSV'; $inputFileName = 'testFile.csv'; $objReader = PHPExcel_IOFactory::createReader($inputFileType); $objPHPExcel = $objReader->load($inputFileName); 

To export a CSV file from a PHPExcel object

$objWriter = PHPExcel_IOFactory::createWriter($objPHPExcel, 'CSV'); $objWriter->save('testExportFile.csv'); 

EDIT

How to read through the rows and cells:

$worksheet = $objPHPExcel->getActiveSheet(); foreach ($worksheet->getRowIterator() as $row) {     echo 'Row number: ' . $row->getRowIndex() . "\r\n";      $cellIterator = $row->getCellIterator();     $cellIterator->setIterateOnlyExistingCells(false); // Loop all cells, even if it is not set     foreach ($cellIterator as $cell) {         if (!is_null($cell)) {             echo 'Cell: ' . $cell->getCoordinate() . ' - ' . $cell->getValue() . "\r\n";         }     } } 

How to write to a PHPExcel object: You don't say where your data comes from: here's how to do it from a MySQL Query

$query = sprintf("SELECT firstname, lastname, age, date_of_birth, salary FROM employees WHERE firstname='%s' AND lastname='%s'",                   mysql_real_escape_string($firstname),                   mysql_real_escape_string($lastname)); $result = mysql_query($query);  $row = 1; $objPHPExcel->getActiveSheet()->setCellValue('A'.$row, 'First Name')                               ->setCellValue('B'.$row, 'Last Name')                               ->setCellValue('C'.$row, 'Age')                               ->setCellValue('D'.$row, 'Date of birth')                               ->setCellValue('E'.$row, 'Salary'); $row++; while ($rec = mysql_fetch_assoc($result)) {     $objPHPExcel->getActiveSheet()->setCellValue('A'.$row, $rec['firstname'])                                   ->setCellValue('B'.$row, $rec['lastname'])                                   ->setCellValue('C'.$row, $rec['age'])                                   ->setCellValue('D'.$row, PHPExcel_Shared_Date::stringToExcel($rec['date_of_birth']))                                   ->setCellValue('E'.$row, $rec['salary']);     $objPHPExcel->getActiveSheet()->getStyle('D'.$row)->getNumberFormat()->setFormatCode(PHPExcel_Style_NumberFormat::FORMAT_DATE_XLSX15);     $objPHPExcel->getActiveSheet()->getStyle('E'.$row)->getNumberFormat()->setFormatCode('£#,##0.00');     $row++; } 

Answer 2

I been seeking the same thing. Excel CSV dosn't always use the quote separators and escapes the quotes using "" because the algorithm was probably made back the 80's or something. After looking at several .csv parsers in the comments section on PHP.NET, I seen ones that even used callbacks or eval'd code and they either didnt work like needed or simply didnt work at all. So, I wrote my own routines for this and they work in the most basic PHP configuration. The array keys can either be numeric or named as the fields given in the header row. Hope this helps.

    function SW_ImplodeCSV(array $rows, $headerrow=true, $mode='EXCEL', $fmt='2D_FIELDNAME_ARRAY')     // SW_ImplodeCSV - returns 2D array as string of csv(MS Excel .CSV supported)     // AUTHOR: [email protected]     // RELEASED: 9/21/13 BETA       { $r=1; $row=array(); $fields=array(); $csv="";         $escapes=array('\r', '\n', '\t', '\\', '\"');  //two byte escape codes         $escapes2=array("\r", "\n", "\t", "\\", "\""); //actual code          if($mode=='EXCEL')// escape code = ""          { $delim=','; $enclos='"'; $rowbr="\r\n"; }         else //mode=STANDARD all fields enclosed            { $delim=','; $enclos='"'; $rowbr="\r\n"; }            $csv=""; $i=-1; $i2=0; $imax=count($rows);            while( $i < $imax )           {             // get field names             if($i == -1)              { $row=$rows[0];                if($fmt=='2D_FIELDNAME_ARRAY')                 { $i2=0; $i2max=count($row);                   while( list($k, $v) = each($row) )                    { $fields[$i2]=$k;                      $i2++;                    }                 }                else //if($fmt='2D_NUMBERED_ARRAY')                 { $i2=0; $i2max=(count($rows[0]));                   while($i2<$i2max)                    { $fields[$i2]=$i2;                      $i2++;                    }                 }                 if($headerrow==true) { $row=$fields; }                else                 { $i=0; $row=$rows[0];}              }             else              { $row=$rows[$i];              }              $i2=0;  $i2max=count($row);              while($i2 < $i2max)// numeric loop (order really matters here)             //while( list($k, $v) = each($row) )              { if($i2 != 0) $csv=$csv.$delim;                 $v=$row[$fields[$i2]];                 if($mode=='EXCEL') //EXCEL 2quote escapes                     { $newv = '"'.(str_replace('"', '""', $v)).'"'; }                else  //STANDARD                     { $newv = '"'.(str_replace($escapes2, $escapes, $v)).'"'; }                $csv=$csv.$newv;                $i2++;              }              $csv=$csv."\r\n";              $i++;           }           return $csv;        }      function SW_ExplodeCSV($csv, $headerrow=true, $mode='EXCEL', $fmt='2D_FIELDNAME_ARRAY')      { // SW_ExplodeCSV - parses CSV into 2D array(MS Excel .CSV supported)        // AUTHOR: [email protected]        // RELEASED: 9/21/13 BETA        //SWMessage("SW_ExplodeCSV() - CALLED HERE -");        $rows=array(); $row=array(); $fields=array();// rows = array of arrays         //escape code = '\'        $escapes=array('\r', '\n', '\t', '\\', '\"');  //two byte escape codes        $escapes2=array("\r", "\n", "\t", "\\", "\""); //actual code         if($mode=='EXCEL')         {// escape code = ""           $delim=','; $enclos='"'; $esc_enclos='""'; $rowbr="\r\n";         }        else //mode=STANDARD          {// all fields enclosed           $delim=','; $enclos='"'; $rowbr="\r\n";         }         $indxf=0; $indxl=0; $encindxf=0; $encindxl=0; $enc=0; $enc1=0; $enc2=0; $brk1=0; $rowindxf=0; $rowindxl=0; $encflg=0;        $rowcnt=0; $colcnt=0; $rowflg=0; $colflg=0; $cell="";        $headerflg=0; $quotedflg=0;        $i=0; $i2=0; $imax=strlen($csv);            while($indxf < $imax)          {            //find first *possible* cell delimiters            $indxl=strpos($csv, $delim, $indxf);  if($indxl===false) { $indxl=$imax; }            $encindxf=strpos($csv, $enclos, $indxf); if($encindxf===false) { $encindxf=$imax; }//first open quote            $rowindxl=strpos($csv, $rowbr, $indxf); if($rowindxl===false) { $rowindxl=$imax; }             if(($encindxf>$indxl)||($encindxf>$rowindxl))             { $quoteflg=0; $encindxf=$imax; $encindxl=$imax;               if($rowindxl<$indxl) { $indxl=$rowindxl; $rowflg=1; }             }            else              { //find cell enclosure area (and real cell delimiter)               $quoteflg=1;               $enc=$encindxf;                while($enc<$indxl) //$enc = next open quote                {// loop till unquoted delim. is found                  $enc=strpos($csv, $enclos, $enc+1); if($enc===false) { $enc=$imax; }//close quote                  $encindxl=$enc; //last close quote                  $indxl=strpos($csv, $delim, $enc+1); if($indxl===false)  { $indxl=$imax; }//last delim.                  $enc=strpos($csv, $enclos, $enc+1); if($enc===false) { $enc=$imax; }//open quote                  if(($indxl==$imax)||($enc==$imax)) break;                }               $rowindxl=strpos($csv, $rowbr, $enc+1); if($rowindxl===false) { $rowindxl=$imax; }               if($rowindxl<$indxl) { $indxl=$rowindxl; $rowflg=1; }             }             if($quoteflg==0)             { //no enclosured content - take as is               $colflg=1;               //get cell               // $cell=substr($csv, $indxf, ($indxl-$indxf)-1);               $cell=substr($csv, $indxf, ($indxl-$indxf));             }            else// if($rowindxl > $encindxf)             { // cell enclosed               $colflg=1;               //get cell - decode cell content               $cell=substr($csv, $encindxf+1, ($encindxl-$encindxf)-1);                if($mode=='EXCEL') //remove EXCEL 2quote escapes                 { $cell=str_replace($esc_enclos, $enclos, $cell);                 }               else //remove STANDARD esc. sceme                 { $cell=str_replace($escapes, $escapes2, $cell);                 }             }             if($colflg)             {// read cell into array               if( ($fmt=='2D_FIELDNAME_ARRAY') && ($headerflg==1) )                { $row[$fields[$colcnt]]=$cell; }               else if(($fmt=='2D_NUMBERED_ARRAY')||($headerflg==0))                { $row[$colcnt]=$cell; } //$rows[$rowcnt][$colcnt] = $cell;                $colcnt++; $colflg=0; $cell="";               $indxf=$indxl+1;//strlen($delim);             }            if($rowflg)             {// read row into big array               if(($headerrow) && ($headerflg==0))                 {  $fields=$row;                    $row=array();                    $headerflg=1;                 }               else                 { $rows[$rowcnt]=$row;                   $row=array();                   $rowcnt++;                  }                $colcnt=0; $rowflg=0; $cell="";                $rowindxf=$rowindxl+2;//strlen($rowbr);                $indxf=$rowindxf;             }             $i++;            //SWMessage("SW_ExplodeCSV() - colcnt = ".$colcnt."   rowcnt = ".$rowcnt."   indxf = ".$indxf."   indxl = ".$indxl."   rowindxf = ".$rowindxf);            //if($i>20) break;          }         return $rows;      } 

...Now bob can do his spreadsheets