php csv to array （csv 转数组）

1. 使用类

注意： user.csv 第一行默认为数组的键，且第一行不会被打印； (区别于下面的普通函数方法 )

例如：

name	age	gender
zhang	23	male
li	20	female

结果：

Array
([0] => Array([name] => zhang [age] => 23[gender] => male)[1] => Array([name] => li [age] => 20[gender] => female)
)

回到正题：

<?php
//ini_set('memory_limit', '-1'); // 如果csv比较大的话，可以添加。
/**  $file : csv file*  $csvDataArr : header of csv table, eg: arary('name','sex','age') or array(0,1,2)*  $specialhtml : whether do you want to convert special characters to html entities ?*  $removechar : which type do you want to remove special characters in array keys, manual or automatical ?*/
class csv_to_array
{private $counter;private $handler;private $length;private $file;private $seprator;private $specialhtml;private $removechar = 'manual';private $csvDataArr;private $csvData = array();function __construct($file = '', $csvDataArr = '', $specialhtml = true, $length = 1000, $seprator = ','){$this->counter = 0;$this->length = $length;$this->file = $file;$this->seprator =  $seprator;$this->specialhtml =  $specialhtml;$this->csvDataArr = is_array($csvDataArr) ? $csvDataArr : array();$this->handler = fopen($this->file, "r");}function get_array(){$getCsvArr = array();$csvDataArr = array();while(($data = fgetcsv($this->handler, $this->length, $this->seprator)) != FALSE){$num = count($data);$getCsvArr[$this->counter] = $data;$this->counter++;}if(count($getCsvArr) > 0){$csvDataArr = array_shift($getCsvArr);if($this->csvDataArr) $csvDataArr = $this->csvDataArr;$counter = 0;foreach($getCsvArr as $csvValue){$totalRec = count($csvValue);for($i = 0; $i < $totalRec ; $i++){$key = $this->csvDataArr ? $csvDataArr[$i] : $this->remove_char($csvDataArr[$i]);if($csvValue[$i]) $this->csvData[$counter][$key] = $this->put_special_char($csvValue[$i]);}$counter++;}}return $this->csvData;}function put_special_char($value){return $this->specialhtml ? str_replace(array('&','" ','\'','<','>'),array('&amp;','&quot;',''','&lt;','&gt;'),$value) : $value;}function remove_char($value){$result = $this->removechar == 'manual' ? $this->remove_char_manual($value) : $this->remove_char_auto($value);return str_replace(' ','_',trim($result));}private function remove_char_manual($value){return str_replace(array('&','"','\'','<','>','(',')','%'),'',trim($value));}private function remove_char_auto($str,$x=0){$x==0 ? $str=$this->make_semiangle($str) : '' ; eregi('[[:punct:]]',$str,$arr);$str = str_replace($arr[0],'',$str);return eregi('[[:punct:]]',$str) ? $this->remove_char_auto($str,1) : $str;}private function make_semiangle($str){$arr = array('０' => '0', '１' => '1', '２' => '2', '３' => '3', '４' => '4','５' => '5', '６' => '6', '７' => '7', '８' => '8', '９' => '9','Ａ' => 'A', 'Ｂ' => 'B', 'Ｃ' => 'C', 'Ｄ' => 'D', 'Ｅ' => 'E','Ｆ' => 'F', 'Ｇ' => 'G', 'Ｈ' => 'H', 'Ｉ' => 'I', 'Ｊ' => 'J','Ｋ' => 'K', 'Ｌ' => 'L', 'Ｍ' => 'M', 'Ｎ' => 'N', 'Ｏ' => 'O','Ｐ' => 'P', 'Ｑ' => 'Q', 'Ｒ' => 'R', 'Ｓ' => 'S', 'Ｔ' => 'T','Ｕ' => 'U', 'Ｖ' => 'V', 'Ｗ' => 'W', 'Ｘ' => 'X', 'Ｙ' => 'Y','Ｚ' => 'Z', 'ａ' => 'a', 'ｂ' => 'b', 'ｃ' => 'c', 'ｄ' => 'd','ｅ' => 'e', 'ｆ' => 'f', 'ｇ' => 'g', 'ｈ' => 'h', 'ｉ' => 'i','ｊ' => 'j', 'ｋ' => 'k', 'ｌ' => 'l', 'ｍ' => 'm', 'ｎ' => 'n','ｏ' => 'o', 'ｐ' => 'p', 'ｑ' => 'q', 'ｒ' => 'r', 'ｓ' => 's','ｔ' => 't', 'ｕ' => 'u', 'ｖ' => 'v', 'ｗ' => 'w', 'ｘ' => 'x','ｙ' => 'y', 'ｚ' => 'z','（' => '(', '）' => ')', '〔' => '[', '〕' => ']', '【' => '[','】' => ']', '〖' => '[', '〗' => ']', '“' => '[', '”' => ']','‘' => '[', '’' => ']', '｛' => '{', '｝' => '}', '《' => '<','》' => '>','％' => '%', '＋' => '+', '—' => '-', '－' => '-', '～' => '-','：' => ':', '。' => '.', '、' => ',', '，' => '.', '、' => '.','；' => ',', '？' => '?', '！' => '!', '…' => '-', '‖' => '|','”' => '"', '’' => '`', '‘' => '`', '｜' => '|', '〃' => '"','　' => ' ','＄'=>'$','＠'=>'@','＃'=>'#','＾'=>'^','＆'=>'&','＊'=>'*');return strtr($str, $arr);}function __destruct(){fclose($this->handler);}
}
// example:
$csv = new csv_to_array('user.csv');
echo "<pre>"; print_r($csv->get_array()); echo "</pre>";

2. 使用一般函数

<?
function csv_to_array($csv)
{$len = strlen($csv);$table = array();$cur_row = array();$cur_val = "";$state = "first item";for ($i = 0; $i < $len; $i++){//sleep(1000);$ch = substr($csv,$i,1);if ($state == "first item"){if ($ch == '"') $state = "we're quoted hea";elseif ($ch == ",") //empty{$cur_row[] = ""; //done with first one$cur_val = "";$state = "first item";}elseif ($ch == "\n"){$cur_row[] = $cur_val;$table[] = $cur_row;$cur_row = array();$cur_val = "";$state = "first item";}elseif ($ch == "\r") $state = "wait for a line feed, if so close out row!";else{$cur_val .= $ch;$state = "gather not quote";}}elseif ($state == "we're quoted hea"){if ($ch == '"') $state = "potential end quote found";else $cur_val .= $ch;}elseif ($state == "potential end quote found"){if ($ch == '"'){$cur_val .= '"';$state = "we're quoted hea";}elseif ($ch == ','){$cur_row[] = $cur_val;$cur_val = "";$state = "first item";}elseif ($ch == "\n"){$cur_row[] = $cur_val;$table[] = $cur_row;$cur_row = array();$cur_val = "";$state = "first item";}elseif ($ch == "\r") $state = "wait for a line feed, if so close out row!";else{$cur_val .= $ch;$state = "we're quoted hea";}}elseif ($state == "wait for a line feed, if so close out row!"){if ($ch == "\n"){$cur_row[] = $cur_val;$cur_val = "";$table[] = $cur_row;$cur_row = array();$state = "first item";}else{$cur_row[] = $cur_val;$table[] = $cur_row;$cur_row = array();$cur_val = $ch;$state = "gather not quote";}    }elseif ($state == "gather not quote"){if ($ch == ","){$cur_row[] = $cur_val;$cur_val = "";$state = "first item";}elseif ($ch == "\n"){$cur_row[] = $cur_val;$table[] = $cur_row;$cur_row = array();$cur_val = "";$state = "first item";}elseif ($ch == "\r") $state = "wait for a line feed, if so close out row!";else $cur_val .= $ch;}}return $table;
}//pass a csv string, get a php array
// example:
$arr = csv_to_array(file_get_contents('user.csv'));
echo "<pre>"; print_r($arr);   echo "</pre>"

或者

<?
$arrCSV = array();
// Open the CSV
if (($handle = fopen("user.csv", "r")) !==FALSE) {// Set the parent array key to 0$key = 0;// While there is data available loop through unlimited times (0) using separator (,)while (($data = fgetcsv($handle, 0, ",")) !==FALSE) {// Count the total keys in each row$c = count($data);//Populate the arrayfor ($x=0;$x<$c;$x++) $arrCSV[$key][$x] = $data[$x];$key++;} // end while// Close the CSV filefclose($handle);
} // end if
echo "<pre>"; print_r($arrCSV); echo "</pre>";
?>

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