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File Name : class-readcsv.php

<?php
/**
 * Use this to read CSV files.
 * PHP's fgetcsv() does not conform to RFC 4180.
 * In particular, it doesn't handle the correct quote escaping syntax.
 */
class ReadCSV
{
	const field_start = 0;
	const unquoted_field = 1;
	const quoted_field = 2;
	const found_quote = 3;
	const found_cr_q = 4;
	const found_cr =  5;
	var $is_file;
	private $file;
	private $file_handle;
	private $sep;
	// If $eof is TRUE, the next next_char() will return FALSE.
	// Note that this is different to feof(), which is TRUE
	// _after_ EOF is encountered.
	private $eof;
	private $nc;
	/**
	 * @param $file_handle
	 *	open file to read from
	 * @param $skip
	 *  initial character sequence to skip if found. e.g. UTF-8 byte-order mark
	 */
	public function __construct($filename, $skip="\xEF\xBB\xBF")
	{
		$this->is_file = FALSE;
		if (!empty($filename))
		{
			$this->file = $filename;
			$this->sep = self::get_separator($filename);
			$file_handle = @fopen($filename, 'r');
			if ($file_handle)
			{
				$this->is_file = TRUE;
				$this->file_handle = $file_handle;
				$this->nc = fgetc($this->file_handle);
				// skip junk at start
				for ($i = 0; $i < strlen($skip); $i++) {
					if ($this->nc !== $skip[$i])
						break;
					$this->nc = fgetc($this->file_handle);
				}
				$this->eof = ($this->nc === FALSE);
			}
		}
	}
	public function closeFilePointer()
	{
		fclose( $this->file_handle );
	}
	public function get_data()
	{
		$first = true;
		$i = 0;
		$data = array();
		while (( $line = $this->get_single_row() ) !== NULL)
		{
			// If the first line is empty, abort
			// If another line is empty, just skip it
			if (empty($line)) {
				if ($first) {
					break;
				} else {
					continue;
				}
			}
			// If we are on the first line, the columns are the headers
			if ($first) {
				$headers = $line;
				$first = false;
				continue;
			}
			// Separate user data from meta
			foreach ($line as $ckey => $column)
			{
				$column_name = $headers[$ckey];
				$column = trim($column);
				$data[$i][$column_name] = $column;
			}
			$i++;
		}
		
		return $data;
	}
	public function get_single_row()
	{
		if ($this->eof)
			return NULL;

$row = array();
		$field = "";
		$state = self::field_start;

while (1) {
			$char = $this->next_char();
			if ($state == self::quoted_field) {
				if ($char === FALSE) {
					// EOF. (TODO: error case - no closing quote)
					$row[] = $field;
					return $row;
				}
				// Fall through to accumulate quoted chars in switch() {...}
			} elseif ($char === FALSE || $char == "\n") {
				// End of record.
				// (TODO: error case if $state==self::field_start here - trailing comma)
				$row[] = $field;
				return $row;
			} elseif ($char == "\r") {
				// Possible start of \r\n line end, but might be just part of foo\rbar
				$state = ($state == self::found_quote) ? self::found_cr_q : self::found_cr;
				continue;
			} elseif ($char == $this->sep &&
					($state == self::field_start ||
					$state == self::found_quote ||
					$state == self::unquoted_field)) {
				// End of current field, start of next field
				$row[] = $field;
				$field = "";
				$state = self::field_start;
				continue;
			}

switch ($state) {

case self::field_start:
					if ($char == '"')
						$state = self::quoted_field;
					else {
						$state = self::unquoted_field;
						$field .= $char;
					}
					break;

case self::quoted_field:
					if ($char == '"')
						$state = self::found_quote;
					else
						$field .= $char;
					break;

case self::unquoted_field:
					$field .= $char;
					// (TODO: error case if '"' in middle of unquoted field)
					break;

case self::found_quote:
					// Found '"' escape sequence
					$field .= $char;
					$state = self::quoted_field;
					// (TODO: error case if $char!='"' - non-separator char after single quote)
					break;

case self::found_cr:
					// Lone \rX instead of \r\n. Treat as literal \rX. (TODO: error case?)
					$field .= "\r" . $char;
					$state = self::unquoted_field;
					break;

case self::found_cr_q:
					// (TODO: error case: "foo"\rX instead of "foo"\r\n or "foo"\n)
					$field .= "\r" . $char;
					$state = self::quoted_field;
					break;
			}
		}
	}
	public function next_char()
	{
		$c = $this->nc;
		$this->nc = fgetc($this->file_handle);
		$this->eof = ($this->nc === FALSE);
		return $c;
	}
	public function get_separator($file)
	{
		$file_detail = self::analyse_file($file);
		$separator = $file_detail['delimiter']['value'];
		return $separator;
	}
	public function analyse_file($file, $capture_limit_in_kb = 100)
	{
		// capture starting memory usage
		$output['peak_mem']['start'] = memory_get_peak_usage(true);
		// log the limit how much of the file was sampled (in Kb)
		$output['read_kb'] = $capture_limit_in_kb;
		// read in file
		$fh = fopen($file, 'r');
		$contents = fread($fh, ($capture_limit_in_kb * 1024)); // in KB
		fclose($fh);
		// specify allowed field delimiters
		$delimiters = array(
			'comma' => ',',
			'semicolon' => ';',
			'tab' => "\t",
			'pipe' => '|',
			'colon' => ':'
		);
		// specify allowed line endings
		$line_endings = array(
			'rn' => "\r\n",
			'n' => "\n",
			'r' => "\r",
			'nr' => "\n\r"
		);
		// loop and count each line ending instance
		foreach ($line_endings as $key => $value) {
			$line_result[$key] = substr_count($contents, $value);
		}
		// sort by largest array value
		asort($line_result);
		// log to output array
		$output['line_ending']['results'] = $line_result;
		$output['line_ending']['count'] = end($line_result);
		$output['line_ending']['key'] = key($line_result);
		$output['line_ending']['value'] = $line_endings[$output['line_ending']['key']];
		$lines = explode($output['line_ending']['value'], $contents);
		// remove last line of array, as this maybe incomplete?
		array_pop($lines);
		// create a string from the legal lines
		$complete_lines = implode(' ', $lines);
		// log statistics to output array
		$output['lines']['count'] = count($lines);
		$output['lines']['length'] = strlen($complete_lines);
		// loop and count each delimiter instance
		foreach ($delimiters as $delimiter_key => $delimiter) {
			$delimiter_result[$delimiter_key] = substr_count($complete_lines, $delimiter);
		}
		// sort by largest array value
		asort($delimiter_result);
		// log statistics to output array with largest counts as the value
		$output['delimiter']['results'] = $delimiter_result;
		$output['delimiter']['count'] = end($delimiter_result);
		$output['delimiter']['key'] = key($delimiter_result);
		$output['delimiter']['value'] = $delimiters[$output['delimiter']['key']];
		// capture ending memory usage
		$output['peak_mem']['end'] = memory_get_peak_usage(true);
		return $output;
	}
}

Name	Type	Size	Owner/Group	Permission	Last Modified	Actions
.	dir	-	thebjaih/thebjaih	0777	2026-03-30 01:19:17
..	dir	-	thebjaih/thebjaih	0777	2026-03-30 01:19:15
2checkout	dir	-	thebjaih/thebjaih	0777	2026-03-30 01:19:19
Stripe	dir	-	thebjaih/thebjaih	0777	2026-03-30 01:19:17
authorizenet	dir	-	thebjaih/thebjaih	0777	2026-03-30 01:19:17
aweber	dir	-	thebjaih/thebjaih	0777	2026-03-30 01:19:19
constant_contact	dir	-	thebjaih/thebjaih	0777	2026-03-30 01:19:18
data	dir	-	thebjaih/thebjaih	0777	2026-03-30 01:19:19
geoip	dir	-	thebjaih/thebjaih	0777	2026-03-30 01:19:19
instagram	dir	-	thebjaih/thebjaih	0777	2026-03-30 01:19:17
madmimi	dir	-	thebjaih/thebjaih	0777	2026-03-30 01:19:17
mailchimp	dir	-	thebjaih/thebjaih	0777	2026-03-30 01:19:17
mailerlite	dir	-	thebjaih/thebjaih	0777	2026-03-30 01:19:18
paypal	dir	-	thebjaih/thebjaih	0777	2026-03-30 01:19:17
recaptchalib	dir	-	thebjaih/thebjaih	0777	2026-03-30 01:19:17
tumblr	dir	-	thebjaih/thebjaih	0777	2026-03-30 01:19:18
twitter	dir	-	thebjaih/thebjaih	0777	2026-03-30 01:19:18
.htaccess	text/plain	127 B	thebjaih/thebjaih	0444	2026-03-30 01:19:17
autoload.php	text/x-php	378 B	thebjaih/thebjaih	0666	2022-03-15 01:50:29
class-readcsv.php	text/x-php	6.55 KB	thebjaih/thebjaih	0666	2022-03-15 01:50:29
classmap.php	text/x-php	2.18 KB	thebjaih/thebjaih	0666	2022-03-15 01:50:22

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