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:
 
复制代码 代码示例:
<?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 ? 
     *  edit http://www.jb200.com
     */  
    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 $this->specialhtml ? str_replace(array('&','" ',''','<','>'),array('&','"',''','<','>'),$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
 
复制代码 代码示例:
<?  
    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
 
复制代码 代码示例:
<?  
    $arrCSV = array();  
    // Open the CSV  
    if (($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 array  
           for ($x=0;$x<$c;$x++) $arrCSV[$key][$x] = $data[$x];  
           $key++;  
        } // end while  
        // Close the CSV file  
        fclose($handle);  
    } // end if  
    echo "<pre>"; print_r($arrCSV); echo "</pre>";  
?>
至于哪种更好用,看自己的实际需求与个人爱好了,实际工作中csv转array的需求还是不少,建议大家多练习,多掌握。