I been seeking the same thing without using some unsupported PHP class. 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;
}
...bob can now go back to his speadsheets