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rewrote the csv library into an object
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wclouser%mozilla.com
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commit
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252
webtools/uninstall_survey/vendors/csv/csv.php
vendored
252
webtools/uninstall_survey/vendors/csv/csv.php
vendored
@ -1,188 +1,78 @@
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<?php
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/**
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* Functions that take a db result and export it to CSV.
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* Usage example:
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* <code>
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* if ($_GET['csv'])
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* {
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* $res=db_query("SELECT * FROM fic_courses");
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* csv_send_csv($res);
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* exit;
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* }
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* </code>
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* @package libs
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* @subpackage csv
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* @author Richard Faaberg <faabergr@onid.orst.edu>
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* @author Mike Morgan <mike.morgan@oregonstate.edu>
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*/
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/**
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* Use a resource or two dimensional array, then send the CSV results to user.
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* @param mixed $res MySQL resource / result, or a two dimensional array
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* @param string $name name of the export file
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* @return bool true if file sent, false otherwise
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* A simple class to print a csv from a 2 dimensional array.
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*
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*/
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function csv_send_csv($res,$name=null)
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class csv
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{
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// set name of the export file
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$filename=(is_null($name))?'export-'.date('Y-m-d').'.csv':$name.'.csv';
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// check for valid resource
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if ( is_resource($res) )
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{
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$csv=csv_export_to_csv($res);
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}
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elseif( is_array($res) && !empty($res) )
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{
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foreach ($res as $row)
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{
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if ( !is_array($row) )
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;
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else
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$csv[] = csv_array_to_csv($row)."\n";
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}
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}
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if ( is_array($csv) )
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{
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// stream csv to user
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header("Content-type: application/x-csv");
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header('Content-disposition: inline; filename="'.$filename.'"');
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header('Cache-Control: private');
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header('Pragma: public');
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foreach ($csv as $row)
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{
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echo $row;
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}
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return true;
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}
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var $filename = '';
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var $data = array();
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/**
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* @param string name of the file to send
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*/
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function csv($name=null)
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{
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$this->filename = $name;
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if (empty($this->filename)) {
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$this->filename = 'export-'.date('Y-m-d').'.csv';
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}
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}
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/**
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* Function to load data from an array into the object
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* @param array a 2 dimensional array
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*/
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function loadDataFromArray(&$array)
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{
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$this->data = $array;
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}
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/**
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* Will send the CSV to the browser (including headers)
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*/
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function sendCSV()
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{
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$this->_sendHeaders();
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$this->_cleanData();
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foreach ($this->data as $var => $val) {
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// We put quotes around each value here
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$line = implode('","',$val);
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echo "\"{$line}\"\n";
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}
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}
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/**
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* Cleans data for export into a csv (quotes and newlines)
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* @access private
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*/
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function _cleanData()
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{
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foreach ($this->data as $var => $val) {
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// escape the quotes by doubling them
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$val = str_replace('"','""',$val);
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// fix newlines
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$val = str_replace("\n\r", "\n", str_replace("\r", "\n", $val));
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}
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}
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/**
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* Sends headers for a .csv
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* @access private
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*/
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function _sendHeaders()
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{
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header("Content-type: application/x-csv");
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header('Content-disposition: inline; filename="'.$this->filename.'"');
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header('Cache-Control: private');
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header('Pragma: public');
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}
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return false;
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}
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/**
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* Replace quotes inside of a field with double quotes, which is something CSV requires.
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* @param string $string unquoted quotes
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* @return string $string quoted quotes
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*/
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function csv_fix_quotes($string)
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{
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return preg_replace('/"/','""',$string);
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}
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/**
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* Replace line breaks with commas trailed by a space.
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* @param string $string string containing line breaks
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* @param string string without line breaks
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*/
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function csv_fix_line_breaks($string)
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{
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return preg_replace('/(\n\r|\r)/','\n',$string);
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}
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/**
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* Replaces instances of double quotes in a string with a single quote.
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* @param string $string the string to perform the replacement on
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* @return string the string with "" replaced by "
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*/
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function csv_unfix_quotes($string)
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{
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return preg_replace('/""/', '"', $string);
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}
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/**
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* Place quotes outside of every field, which inherently solves space, line break issues.
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* @param string $string
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* @return string $string with quotes around it
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*/
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function csv_add_quotes($string)
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{
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return '"'.$string.'"';
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}
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/**
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* Removes quotes from the beginning and the end of a string.
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* @param string $string the string to remove the quotes from
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* @return string the string, sans quotes at the beginning and end
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*/
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function csv_remove_quotes($string)
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{
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$pattern = "/^\"(.*)\"$/";
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$replacement = "$1";
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return preg_replace($pattern, $replacement, $string);
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}
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/**
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* Convert an array into a CSV string with quotes around each value.
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* @param array $array
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* @return string the values in $array surrounded by quotes and separated by commas
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*/
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function csv_array_to_csv($array)
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{
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$csv_arr = array();
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foreach ($array as $value)
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{
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$csv_arr[]=csv_add_quotes(csv_fix_quotes(csv_fix_line_breaks($value)));
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}
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$csv_string=implode(',',$csv_arr);
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return $csv_string;
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}
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/**
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* Convert a CSV string into an array.
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* Please use sparingly - this creates temp files
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* @param string $string the CSV string
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* @return array the elements from the CSV string in an array
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*/
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function csv_csv_to_array($string)
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{
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$return = array();
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$length = strlen($string);
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// create a temp file and write the string to it
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$tmpfname = tempnam('/tmp', 'csvlib');
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$fh = fopen($tmpfname, 'w');
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fwrite($fh, $string);
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fclose($fh);
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// open the file for csv parsing
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$csvh = fopen($tmpfname, 'r');
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while (($arraydata = fgetcsv($csvh, $length, ',')) !== false)
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{
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$return = array_merge($return, $arraydata);
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}
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fclose($csvh);
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unlink($tmpfname);
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return $return;
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}
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/**
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* Read a CSV file into a two dimensional array
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* It returns all the rows in the file, so if the first row are headers, you'd need to take care of that in the returned array
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* @param string $filepath the path to the csv file
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* @param string $delimiter delimiter, default to ','
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* @param string $enclosure enclosure character, default to '"'
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* @return &array the two dimensional array with the csv file content, or an empty if an error occured
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*/
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function &csv_csv_file_to_array($filepath, $delimiter=',', $enclosure='"')
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{
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$return = array();
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if (!file_exists($filepath) || !is_readable($filepath))
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return $return;
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$fh =& fopen($filepath, 'r');
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$size = filesize($filepath)+1;
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while ($data =& fgetcsv($fh, $size, $delimiter, $enclosure))
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{
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$return[] = $data;
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}
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fclose($fh);
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return $return;
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}
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?>
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