sscanf
peev[dot]alexander at gmail dot com, please do keep in mind that:
$thisIsTrue= '\\"' == '\"';
PHP is not capable of telling you if you are escaping a string with a backslash or if that backslash is being escaped. Both strings have length 2. First character is '\' and second is '"'. On second example quote is being escaped while on first example they are being not.
str_getcsv
(No version information available, might be only in CVS)
str_getcsv — CSV 文字列をパースして配列に格納する
説明
array str_getcsv
( string $input
[, string $delimiter
[, string $enclosure
[, string $escape
]]] )
警告
この関数は、 現在のところ詳細な情報はありません。引数のリストのみが 記述されています。
add a note
User Contributed Notesstr_getcsv
lgandras at hotmail dot com
26-Aug-2008 07:47
26-Aug-2008 07:47
colin_mckinnon at slc dot co dot uk
10-Jun-2008 01:00
10-Jun-2008 01:00
Regarding RFC 4180 - I asked the author about the specifics of the format described which poses a number of technical difficulties in building a parser - his response is shown below:
quote:
Please do keep one thing in mind - this RFC
was meant to define the MIME type for CSV rather than the format. It
happens to be that no format definition existed and I was forced to
define one. As the RFC states:
"This section documents the format that seems to be followed by most
implementations"
csv at rfc dot org
06-May-2008 05:15
06-May-2008 05:15
RFC 4180 which deals with CSVs states the escape character is supposed to be a double quotation mark: (page 2)
7. If double-quotes are used to enclose fields, then a double-quote
appearing inside a field must be escaped by preceding it with
another double quote. For example:
"aaa","b""bb","ccc"
peev[dot]alexander at gmail dot com
21-Apr-2008 06:22
21-Apr-2008 06:22
CSV parsing and storage is not that hard to implement - see my example functions ( I believe they do a pretty good job - I use them in a production environment ):
<?php
if( !function_exists("parse_csv") ){
function parse_csv($string){
/* Author : Alexander Peev, posted at PHP.NET */
if( !function_exists("parse_csv_aux") ){
function parse_csv_aux( $string ){
$product = "";
$in_quote = FALSE;
$skipped_quote = FALSE;
for( $i = 0 ; $i < strlen($string) ; $i++ ){
if( $string{$i} == "\"" ){
if($in_quote){
if($skipped_quote){
$product .= "\"";
$skipped_quote = FALSE;
}
else if( !$skipped_quote ){
$skipped_quote = TRUE;
}
}
else{
if($skipped_quote) $skipped_quote = FALSE;
$in_quote = TRUE;
}
}
else if( $string{$i} == ";" ){
if($in_quote){
$product .= ";";
}
else{
$product .= " ; ";
}
}
else{
if($in_quote){
$in_quote = FALSE;
$product .= $string{$i};
}
else{
$product .= $string{$i};
}
}
}
return $product;
}
}
$data = array();
if( is_string($string) && ( stripos($string, "\n") !== FALSE ) ){
$data = explode("\n", parse_csv_aux($string) );
foreach($data as $key => $row){
$columns = array();
//$row = strtr( $row, array( "\";\"" => "\";\"", ";" => " ; " ) );
if( stripos($row, " ; ") !== FALSE ){
$columns = explode( " ; ", $row );
if( !is_array($columns) )$columns = array( strval($columns) );
$data[$key] = $columns;
}
}
return $data;
}
else if( is_string($string) && ( stripos( ($string = parse_csv_aux($string)), " ; ") !== FALSE ) ){
$columns = explode( " ; ", $string );
if( !is_array($columns) )$columns = array( strval($columns) );
return array($columns);
}
else return strval($string);
} /* end function parse_csv */
} /* end not function exists parse_csv */
if( !function_exists("store_csv") ){
function store_csv($data){
/* Author : Alexander Peev, posted at PHP.NET */
if( !function_exists("store_csv_aux") ){
function store_csv_aux( $string ){
$string = strtr( $string, array( "\n" => "" ) );
$product = "";
$in_quote = FALSE;
for( $i = 0 ; $i < strlen($string) ; $i++ ){
if( $string{$i} == "\"" ){
if($in_quote){
$product .= "\"\"";
}
else{
$product .= "\"\"\"";
$in_quote = TRUE;
}
}
else if( $string{$i} == ";" ){
if($in_quote){
$product .= ";";
}
else{
$product .= "\";";
$in_quote = TRUE;
}
}
else{
if($in_quote){
$product .= "\"";
$in_quote = FALSE;
$product .= $string{$i};
}
else{
$product .= $string{$i};
}
}
}
if($in_quote)$product .= "\"";
return $product;
}
}
if(!is_array($data))return strval($data);
$passed_rows = FALSE;
$product = "";
foreach($data as $row){
if( $passed_rows )$product .= "\n";
if( is_array($row) ){
$columns = "";
$passed_cols = FALSE;
foreach($row as $column){
if( $passed_cols )$columns .= ";";
$columns .= store_csv_aux( $column );
$passed_cols =TRUE;
}
$product .= strval($columns);
}
else{
$product .= strtr( strval($row), array("\n" => "") );
}
$passed_rows = TRUE;
}
return $product;
} /* end function store_csv */
} /* end not function exists store_csv */
?>
jon at webignition dot net
04-Apr-2008 07:52
04-Apr-2008 07:52
Parameter documentation, currently missing here, can be found at:
> http://www.php.net/manual/en/function.fgetcsv.php
justin at cam dot org
16-Feb-2007 03:25
16-Feb-2007 03:25
There's a discussion of how to perform this task in the user notes for the split() function.
http://www.php.net/manual/en/function.split.php