696 lines
21 KiB
PHP
696 lines
21 KiB
PHP
<?php
|
|
|
|
class smParseCSV {
|
|
|
|
/*
|
|
|
|
Class: parseCSV v0.3.2
|
|
http://code.google.com/p/parsecsv-for-php/
|
|
|
|
|
|
Fully conforms to the specifications lined out on wikipedia:
|
|
- http://en.wikipedia.org/wiki/Comma-separated_values
|
|
|
|
Based on the concept of Ming Hong Ng's CsvFileParser class:
|
|
- http://minghong.blogspot.com/2006/07/csv-parser-for-php.html
|
|
|
|
|
|
|
|
Copyright (c) 2007 Jim Myhrberg (jim@zydev.info).
|
|
|
|
Permission is hereby granted, free of charge, to any person obtaining a copy
|
|
of this software and associated documentation files (the "Software"), to deal
|
|
in the Software without restriction, including without limitation the rights
|
|
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
|
copies of the Software, and to permit persons to whom the Software is
|
|
furnished to do so, subject to the following conditions:
|
|
|
|
The above copyright notice and this permission notice shall be included in
|
|
all copies or substantial portions of the Software.
|
|
|
|
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
|
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
|
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
|
THE SOFTWARE.
|
|
|
|
|
|
|
|
Code Examples
|
|
----------------
|
|
# general usage
|
|
$csv = new parseCSV('data.csv');
|
|
print_r($csv->data);
|
|
----------------
|
|
# tab delimited, and encoding conversion
|
|
$csv = new parseCSV();
|
|
$csv->encoding('UTF-16', 'UTF-8');
|
|
$csv->delimiter = "\t";
|
|
$csv->parse('data.tsv');
|
|
print_r($csv->data);
|
|
----------------
|
|
# auto-detect delimiter character
|
|
$csv = new parseCSV();
|
|
$csv->auto('data.csv');
|
|
print_r($csv->data);
|
|
----------------
|
|
# modify data in a csv file
|
|
$csv = new parseCSV();
|
|
$csv->sort_by = 'id';
|
|
$csv->parse('data.csv');
|
|
# "4" is the value of the "id" column of the CSV row
|
|
$csv->data[4] = array('firstname' => 'John', 'lastname' => 'Doe', 'email' => 'john@doe.com');
|
|
$csv->save();
|
|
----------------
|
|
# add row/entry to end of CSV file
|
|
# - only recommended when you know the extact sctructure of the file
|
|
$csv = new parseCSV();
|
|
$csv->save('data.csv', array('1986', 'Home', 'Nowhere', ''), true);
|
|
----------------
|
|
# convert 2D array to csv data and send headers
|
|
# to browser to treat output as a file and download it
|
|
$csv = new parseCSV();
|
|
$csv->output (true, 'movies.csv', $array);
|
|
----------------
|
|
|
|
|
|
*/
|
|
|
|
|
|
/**
|
|
* Configuration
|
|
* - set these options with $object->var_name = 'value';
|
|
*/
|
|
|
|
# use first line/entry as field names
|
|
var $heading = true;
|
|
|
|
# override field names
|
|
var $fields = array();
|
|
|
|
# sort entries by this field
|
|
var $sort_by = null;
|
|
var $sort_reverse = false;
|
|
|
|
# delimiter (comma) and enclosure (double quote)
|
|
var $delimiter = ',';
|
|
var $enclosure = '"';
|
|
|
|
# basic SQL-like conditions for row matching
|
|
var $conditions = null;
|
|
|
|
# number of rows to ignore from beginning of data
|
|
var $offset = null;
|
|
|
|
# limits the number of returned rows to specified amount
|
|
var $limit = null;
|
|
|
|
# number of rows to analyze when attempting to auto-detect delimiter
|
|
var $auto_depth = 15;
|
|
|
|
# characters to ignore when attempting to auto-detect delimiter
|
|
var $auto_non_chars = "a-zA-Z0-9\n\r";
|
|
|
|
# preferred delimiter characters, only used when all filtering method
|
|
# returns multiple possible delimiters (happens very rarely)
|
|
var $auto_preferred = ",;\t.:|";
|
|
|
|
# character encoding options
|
|
var $convert_encoding = false;
|
|
var $input_encoding = 'ISO-8859-1';
|
|
var $output_encoding = 'ISO-8859-1';
|
|
|
|
# used by unparse(), save(), and output() functions
|
|
var $linefeed = "\r\n";
|
|
|
|
# only used by output() function
|
|
var $output_delimiter = ',';
|
|
var $output_filename = 'data.csv';
|
|
|
|
|
|
/**
|
|
* Internal variables
|
|
*/
|
|
|
|
# current file
|
|
var $file;
|
|
|
|
# loaded file contents
|
|
var $file_data;
|
|
|
|
# array of field values in data parsed
|
|
var $titles = array();
|
|
|
|
# two dimentional array of CSV data
|
|
var $data = array();
|
|
|
|
|
|
/**
|
|
* Constructor
|
|
* @param input CSV file or string
|
|
* @return nothing
|
|
*/
|
|
function smParseCSV ($input = null, $offset = null, $limit = null, $conditions = null) {
|
|
if ( $offset !== null ) $this->offset = $offset;
|
|
if ( $limit !== null ) $this->limit = $limit;
|
|
if ( count($conditions) > 0 ) $this->conditions = $conditions;
|
|
if ( !empty($input) ) $this->parse($input);
|
|
}
|
|
|
|
|
|
// ==============================================
|
|
// ----- [ Main Functions ] ---------------------
|
|
// ==============================================
|
|
|
|
/**
|
|
* Parse CSV file or string
|
|
* @param input CSV file or string
|
|
* @return nothing
|
|
*/
|
|
function parse ($input = null, $offset = null, $limit = null, $conditions = null) {
|
|
if ( !empty($input) ) {
|
|
if ( $offset !== null ) $this->offset = $offset;
|
|
if ( $limit !== null ) $this->limit = $limit;
|
|
if ( count($conditions) > 0 ) $this->conditions = $conditions;
|
|
if ( is_readable($input) ) {
|
|
$this->data = $this->parse_file($input);
|
|
} else {
|
|
$this->file_data = &$input;
|
|
$this->data = $this->parse_string();
|
|
}
|
|
if ( $this->data === false ) return false;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* Save changes, or new file and/or data
|
|
* @param file file to save to
|
|
* @param data 2D array with data
|
|
* @param append append current data to end of target CSV if exists
|
|
* @param fields field names
|
|
* @return true or false
|
|
*/
|
|
function save ($file = null, $data = array(), $append = false, $fields = array()) {
|
|
if ( empty($file) ) $file = &$this->file;
|
|
$mode = ( $append ) ? 'at' : 'wt' ;
|
|
$is_php = ( preg_match('/\.php$/i', $file) ) ? true : false ;
|
|
return $this->_wfile($file, $this->unparse($data, $fields, $append, $is_php), $mode);
|
|
}
|
|
|
|
/**
|
|
* Generate CSV based string for output
|
|
* @param output if true, prints headers and strings to browser
|
|
* @param filename filename sent to browser in headers if output is true
|
|
* @param data 2D array with data
|
|
* @param fields field names
|
|
* @param delimiter delimiter used to separate data
|
|
* @return CSV data using delimiter of choice, or default
|
|
*/
|
|
function output ($output = true, $filename = null, $data = array(), $fields = array(), $delimiter = null) {
|
|
if ( empty($filename) ) $filename = $this->output_filename;
|
|
if ( $delimiter === null ) $delimiter = $this->output_delimiter;
|
|
$data = $this->unparse($data, $fields, null, null, $delimiter);
|
|
if ( $output ) {
|
|
header('Content-type: application/csv');
|
|
header('Content-Disposition: inline; filename="'.$filename.'"');
|
|
echo $data;
|
|
}
|
|
return $data;
|
|
}
|
|
|
|
/**
|
|
* Convert character encoding
|
|
* @param input input character encoding, uses default if left blank
|
|
* @param output output character encoding, uses default if left blank
|
|
* @return nothing
|
|
*/
|
|
function encoding ($input = null, $output = null) {
|
|
$this->convert_encoding = true;
|
|
if ( $input !== null ) $this->input_encoding = $input;
|
|
if ( $output !== null ) $this->output_encoding = $output;
|
|
}
|
|
|
|
/**
|
|
* Auto-Detect Delimiter: Find delimiter by analyzing a specific number of
|
|
* rows to determine most probable delimiter character
|
|
* @param file local CSV file
|
|
* @param parse true/false parse file directly
|
|
* @param search_depth number of rows to analyze
|
|
* @param preferred preferred delimiter characters
|
|
* @param enclosure enclosure character, default is double quote (").
|
|
* @return delimiter character
|
|
*/
|
|
function auto ($file = null, $parse = true, $search_depth = null, $preferred = null, $enclosure = null) {
|
|
|
|
if ( $file === null ) $file = $this->file;
|
|
if ( empty($search_depth) ) $search_depth = $this->auto_depth;
|
|
if ( $enclosure === null ) $enclosure = $this->enclosure;
|
|
|
|
if ( $preferred === null ) $preferred = $this->auto_preferred;
|
|
|
|
if ( empty($this->file_data) ) {
|
|
if ( $this->_check_data($file) ) {
|
|
$data = &$this->file_data;
|
|
} else return false;
|
|
} else {
|
|
$data = &$this->file_data;
|
|
}
|
|
|
|
$chars = array();
|
|
$strlen = strlen($data);
|
|
$enclosed = false;
|
|
$n = 1;
|
|
$to_end = true;
|
|
|
|
// walk specific depth finding posssible delimiter characters
|
|
for ( $i=0; $i < $strlen; $i++ ) {
|
|
$ch = $data{$i};
|
|
$nch = ( isset($data{$i+1}) ) ? $data{$i+1} : false ;
|
|
$pch = ( isset($data{$i-1}) ) ? $data{$i-1} : false ;
|
|
|
|
// open and closing quotes
|
|
if ( $ch == $enclosure && (!$enclosed || $nch != $enclosure) ) {
|
|
$enclosed = ( $enclosed ) ? false : true ;
|
|
|
|
// inline quotes
|
|
} elseif ( $ch == $enclosure && $enclosed ) {
|
|
$i++;
|
|
|
|
// end of row
|
|
} elseif ( ($ch == "\n" && $pch != "\r" || $ch == "\r") && !$enclosed ) {
|
|
if ( $n >= $search_depth ) {
|
|
$strlen = 0;
|
|
$to_end = false;
|
|
} else {
|
|
$n++;
|
|
}
|
|
|
|
// count character
|
|
} elseif (!$enclosed) {
|
|
if ( !preg_match('/['.preg_quote($this->auto_non_chars, '/').']/i', $ch) ) {
|
|
if ( !isset($chars[$ch][$n]) ) {
|
|
$chars[$ch][$n] = 1;
|
|
} else {
|
|
$chars[$ch][$n]++;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
// filtering
|
|
$depth = ( $to_end ) ? $n-1 : $n ;
|
|
$filtered = array();
|
|
foreach( $chars as $char => $value ) {
|
|
if ( $match = $this->_check_count($char, $value, $depth, $preferred) ) {
|
|
$filtered[$match] = $char;
|
|
}
|
|
}
|
|
|
|
// capture most probable delimiter
|
|
ksort($filtered);
|
|
$delimiter = reset($filtered);
|
|
$this->delimiter = $delimiter;
|
|
|
|
// parse data
|
|
if ( $parse ) $this->data = $this->parse_string();
|
|
|
|
return $delimiter;
|
|
|
|
}
|
|
|
|
|
|
// ==============================================
|
|
// ----- [ Core Functions ] ---------------------
|
|
// ==============================================
|
|
|
|
/**
|
|
* Read file to string and call parse_string()
|
|
* @param file local CSV file
|
|
* @return 2D array with CSV data, or false on failure
|
|
*/
|
|
function parse_file ($file = null) {
|
|
if ( $file === null ) $file = $this->file;
|
|
if ( empty($this->file_data) ) $this->load_data($file);
|
|
return ( !empty($this->file_data) ) ? $this->parse_string() : false ;
|
|
}
|
|
|
|
/**
|
|
* Parse CSV strings to arrays
|
|
* @param data CSV string
|
|
* @return 2D array with CSV data, or false on failure
|
|
*/
|
|
function parse_string ($data = null) {
|
|
if ( empty($data) ) {
|
|
if ( $this->_check_data() ) {
|
|
$data = &$this->file_data;
|
|
} else return false;
|
|
}
|
|
|
|
$rows = array();
|
|
$row = array();
|
|
$row_count = 0;
|
|
$current = '';
|
|
$head = ( !empty($this->fields) ) ? $this->fields : array() ;
|
|
$col = 0;
|
|
$enclosed = false;
|
|
$was_enclosed = false;
|
|
$strlen = strlen($data);
|
|
|
|
// walk through each character
|
|
for ( $i=0; $i < $strlen; $i++ ) {
|
|
$ch = $data{$i};
|
|
$nch = ( isset($data{$i+1}) ) ? $data{$i+1} : false ;
|
|
$pch = ( isset($data{$i-1}) ) ? $data{$i-1} : false ;
|
|
|
|
// open and closing quotes
|
|
if ( $ch == $this->enclosure && (!$enclosed || $nch != $this->enclosure) ) {
|
|
$enclosed = ( $enclosed ) ? false : true ;
|
|
if ( $enclosed ) $was_enclosed = true;
|
|
|
|
// inline quotes
|
|
} elseif ( $ch == $this->enclosure && $enclosed ) {
|
|
$current .= $ch;
|
|
$i++;
|
|
|
|
// end of field/row
|
|
} elseif ( ($ch == $this->delimiter || ($ch == "\n" && $pch != "\r") || $ch == "\r") && !$enclosed ) {
|
|
if ( !$was_enclosed ) $current = trim($current);
|
|
$key = ( !empty($head[$col]) ) ? $head[$col] : $col ;
|
|
$row[$key] = $current;
|
|
$current = '';
|
|
$col++;
|
|
|
|
// end of row
|
|
if ( $ch == "\n" || $ch == "\r" ) {
|
|
if ( $this->_validate_offset($row_count) && $this->_validate_row_conditions($row, $this->conditions) ) {
|
|
if ( $this->heading && empty($head) ) {
|
|
$head = $row;
|
|
} elseif ( empty($this->fields) || (!empty($this->fields) && (($this->heading && $row_count > 0) || !$this->heading)) ) {
|
|
if ( !empty($this->sort_by) && !empty($row[$this->sort_by]) ) {
|
|
if ( isset($rows[$row[$this->sort_by]]) ) {
|
|
$rows[$row[$this->sort_by].'_0'] = &$rows[$row[$this->sort_by]];
|
|
unset($rows[$row[$this->sort_by]]);
|
|
for ( $sn=1; isset($rows[$row[$this->sort_by].'_'.$sn]); $sn++ ) {}
|
|
$rows[$row[$this->sort_by].'_'.$sn] = $row;
|
|
} else $rows[$row[$this->sort_by]] = $row;
|
|
} else $rows[] = $row;
|
|
}
|
|
}
|
|
$row = array();
|
|
$col = 0;
|
|
$row_count++;
|
|
if ( $this->sort_by === null && $this->limit !== null && count($rows) == $this->limit ) {
|
|
$i = $strlen;
|
|
}
|
|
}
|
|
|
|
// append character to current field
|
|
} else {
|
|
$current .= $ch;
|
|
}
|
|
}
|
|
$this->titles = $head;
|
|
if ( !empty($this->sort_by) ) {
|
|
( $this->sort_reverse ) ? krsort($rows) : ksort($rows) ;
|
|
if ( $this->offset !== null || $this->limit !== null ) {
|
|
$rows = array_slice($rows, ($this->offset === null ? 0 : $this->offset) , $this->limit, true);
|
|
}
|
|
}
|
|
return $rows;
|
|
}
|
|
|
|
/**
|
|
* Create CSV data from array
|
|
* @param data 2D array with data
|
|
* @param fields field names
|
|
* @param append if true, field names will not be output
|
|
* @param is_php if a php die() call should be put on the first
|
|
* line of the file, this is later ignored when read.
|
|
* @param delimiter field delimiter to use
|
|
* @return CSV data (text string)
|
|
*/
|
|
function unparse ( $data = array(), $fields = array(), $append = false , $is_php = false, $delimiter = null) {
|
|
if ( !is_array($data) || empty($data) ) $data = &$this->data;
|
|
if ( !is_array($fields) || empty($fields) ) $fields = &$this->titles;
|
|
if ( $delimiter === null ) $delimiter = $this->delimiter;
|
|
|
|
$string = ( $is_php ) ? "<?php header('Status: 403'); die(' '); ?>".$this->linefeed : '' ;
|
|
$entry = array();
|
|
|
|
// create heading
|
|
if ( $this->heading && !$append ) {
|
|
foreach( $fields as $key => $value ) {
|
|
$entry[] = $this->_enclose_value($value);
|
|
}
|
|
$string .= implode($delimiter, $entry).$this->linefeed;
|
|
$entry = array();
|
|
}
|
|
|
|
// create data
|
|
foreach( $data as $key => $row ) {
|
|
foreach( $row as $field => $value ) {
|
|
$entry[] = $this->_enclose_value($value);
|
|
}
|
|
$string .= implode($delimiter, $entry).$this->linefeed;
|
|
$entry = array();
|
|
}
|
|
|
|
return $string;
|
|
}
|
|
|
|
/**
|
|
* Load local file or string
|
|
* @param input local CSV file
|
|
* @return true or false
|
|
*/
|
|
function load_data ($input = null) {
|
|
$data = null;
|
|
$file = null;
|
|
if ( $input === null ) {
|
|
$file = $this->file;
|
|
} elseif ( file_exists($input) ) {
|
|
$file = $input;
|
|
} else {
|
|
$data = $input;
|
|
}
|
|
if ( !empty($data) || $data = $this->_rfile($file) ) {
|
|
if ( $this->file != $file ) $this->file = $file;
|
|
if ( preg_match('/\.php$/i', $file) && preg_match('/<\?.*?\?>(.*)/ims', $data, $strip) ) {
|
|
$data = ltrim($strip[1]);
|
|
}
|
|
if ( $this->convert_encoding ) $data = iconv($this->input_encoding, $this->output_encoding, $data);
|
|
if ( substr($data, -1) != "\n" ) $data .= "\n";
|
|
$this->file_data = &$data;
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
|
|
// ==============================================
|
|
// ----- [ Internal Functions ] -----------------
|
|
// ==============================================
|
|
|
|
/**
|
|
* Validate a row against specified conditions
|
|
* @param row array with values from a row
|
|
* @param conditions specified conditions that the row must match
|
|
* @return true of false
|
|
*/
|
|
function _validate_row_conditions ($row = array(), $conditions = null) {
|
|
if ( !empty($row) ) {
|
|
if ( !empty($conditions) ) {
|
|
$conditions = (strpos($conditions, ' OR ') !== false) ? explode(' OR ', $conditions) : array($conditions) ;
|
|
$or = '';
|
|
foreach( $conditions as $key => $value ) {
|
|
if ( strpos($value, ' AND ') !== false ) {
|
|
$value = explode(' AND ', $value);
|
|
$and = '';
|
|
foreach( $value as $k => $v ) {
|
|
$and .= $this->_validate_row_condition($row, $v);
|
|
}
|
|
$or .= (strpos($and, '0') !== false) ? '0' : '1' ;
|
|
} else {
|
|
$or .= $this->_validate_row_condition($row, $value);
|
|
}
|
|
}
|
|
return (strpos($or, '1') !== false) ? true : false ;
|
|
}
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* Validate a row against a single condition
|
|
* @param row array with values from a row
|
|
* @param condition specified condition that the row must match
|
|
* @return true of false
|
|
*/
|
|
function _validate_row_condition ($row, $condition) {
|
|
$operators = array(
|
|
'=', 'equals', 'is',
|
|
'!=', 'is not',
|
|
'<', 'is less than',
|
|
'>', 'is greater than',
|
|
'<=', 'is less than or equals',
|
|
'>=', 'is greater than or equals',
|
|
'contains',
|
|
'does not contain',
|
|
);
|
|
$operators_regex = array();
|
|
foreach( $operators as $value ) {
|
|
$operators_regex[] = preg_quote($value, '/');
|
|
}
|
|
$operators_regex = implode('|', $operators_regex);
|
|
if ( preg_match('/^(.+) ('.$operators_regex.') (.+)$/i', trim($condition), $capture) ) {
|
|
$field = $capture[1];
|
|
$op = $capture[2];
|
|
$value = $capture[3];
|
|
if ( preg_match('/^([\'\"]{1})(.*)([\'\"]{1})$/i', $value, $capture) ) {
|
|
if ( $capture[1] == $capture[3] ) {
|
|
$value = $capture[2];
|
|
$value = str_replace("\\n", "\n", $value);
|
|
$value = str_replace("\\r", "\r", $value);
|
|
$value = str_replace("\\t", "\t", $value);
|
|
$value = stripslashes($value);
|
|
}
|
|
}
|
|
if ( array_key_exists($field, $row) ) {
|
|
if ( ($op == '=' || $op == 'equals' || $op == 'is') && $row[$field] == $value ) {
|
|
return '1';
|
|
} elseif ( ($op == '!=' || $op == 'is not') && $row[$field] != $value ) {
|
|
return '1';
|
|
} elseif ( ($op == '<' || $op == 'is less than' ) && $row[$field] < $value ) {
|
|
return '1';
|
|
} elseif ( ($op == '>' || $op == 'is greater than') && $row[$field] > $value ) {
|
|
return '1';
|
|
} elseif ( ($op == '<=' || $op == 'is less than or equals' ) && $row[$field] <= $value ) {
|
|
return '1';
|
|
} elseif ( ($op == '>=' || $op == 'is greater than or equals') && $row[$field] >= $value ) {
|
|
return '1';
|
|
} elseif ( $op == 'contains' && preg_match('/'.preg_quote($value, '/').'/i', $row[$field]) ) {
|
|
return '1';
|
|
} elseif ( $op == 'does not contain' && !preg_match('/'.preg_quote($value, '/').'/i', $row[$field]) ) {
|
|
return '1';
|
|
} else {
|
|
return '0';
|
|
}
|
|
}
|
|
}
|
|
return '1';
|
|
}
|
|
|
|
/**
|
|
* Validates if the row is within the offset or not if sorting is disabled
|
|
* @param current_row the current row number being processed
|
|
* @return true of false
|
|
*/
|
|
function _validate_offset ($current_row) {
|
|
if ( $this->sort_by === null && $this->offset !== null && $current_row < $this->offset ) return false;
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* Enclose values if needed
|
|
* - only used by unparse()
|
|
* @param value string to process
|
|
* @return Processed value
|
|
*/
|
|
function _enclose_value ($value = null) {
|
|
if ( $value !== null && $value != '' ) {
|
|
$delimiter = preg_quote($this->delimiter, '/');
|
|
$enclosure = preg_quote($this->enclosure, '/');
|
|
if ( preg_match("/".$delimiter."|".$enclosure."|\n|\r/i", $value) || ($value{0} == ' ' || substr($value, -1) == ' ') ) {
|
|
$value = str_replace($this->enclosure, $this->enclosure.$this->enclosure, $value);
|
|
$value = $this->enclosure.$value.$this->enclosure;
|
|
}
|
|
}
|
|
return $value;
|
|
}
|
|
|
|
/**
|
|
* Check file data
|
|
* @param file local filename
|
|
* @return true or false
|
|
*/
|
|
function _check_data ($file = null) {
|
|
if ( empty($this->file_data) ) {
|
|
if ( $file === null ) $file = $this->file;
|
|
return $this->load_data($file);
|
|
}
|
|
return true;
|
|
}
|
|
|
|
|
|
/**
|
|
* Check if passed info might be delimiter
|
|
* - only used by find_delimiter()
|
|
* @return special string used for delimiter selection, or false
|
|
*/
|
|
function _check_count ($char, $array, $depth, $preferred) {
|
|
if ( $depth == count($array) ) {
|
|
$first = null;
|
|
$equal = null;
|
|
$almost = false;
|
|
foreach( $array as $key => $value ) {
|
|
if ( $first == null ) {
|
|
$first = $value;
|
|
} elseif ( $value == $first && $equal !== false) {
|
|
$equal = true;
|
|
} elseif ( $value == $first+1 && $equal !== false ) {
|
|
$equal = true;
|
|
$almost = true;
|
|
} else {
|
|
$equal = false;
|
|
}
|
|
}
|
|
if ( $equal ) {
|
|
$match = ( $almost ) ? 2 : 1 ;
|
|
$pref = strpos($preferred, $char);
|
|
$pref = ( $pref !== false ) ? str_pad($pref, 3, '0', STR_PAD_LEFT) : '999' ;
|
|
return $pref.$match.'.'.(99999 - str_pad($first, 5, '0', STR_PAD_LEFT));
|
|
} else return false;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Read local file
|
|
* @param file local filename
|
|
* @return Data from file, or false on failure
|
|
*/
|
|
function _rfile ($file = null) {
|
|
if ( is_readable($file) ) {
|
|
if ( !($fh = fopen($file, 'r')) ) return false;
|
|
$data = fread($fh, filesize($file));
|
|
fclose($fh);
|
|
return $data;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* Write to local file
|
|
* @param file local filename
|
|
* @param string data to write to file
|
|
* @param mode fopen() mode
|
|
* @param lock flock() mode
|
|
* @return true or false
|
|
*/
|
|
function _wfile ($file, $string = '', $mode = 'wb', $lock = 2) {
|
|
if ( $fp = fopen($file, $mode) ) {
|
|
flock($fp, $lock);
|
|
$re = fwrite($fp, $string);
|
|
$re2 = fclose($fp);
|
|
if ( $re != false && $re2 != false ) return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
}
|
|
|
|
?>
|