php csv to array （csv 转数组）

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：

Php代码



Array

(

[0] => Array

(

[name] => zhang

[age] => 23

[gender] => male

)

[1] => Array

(

[name] => li

[age] => 20

[gender] => female

)

)

回到正题：

Php代码



<?php

class csv_to_array{

private $counter;

private $handler;

private $length;

private $file;

private $seprator;

private $csvData = array();

function __construct($file = "", $length = 1000, $seprator = ','){

$this->counter = 0;

$this->length = $length;

$this->file = $file;

$this->seprator = $seprator;

$this->handler = fopen($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);

$counter = 0;

foreach($getCsvArr as $csvValue){

$totalRec = count($csvValue);

for($i = 0; $i < $totalRec ; $i++) $this->csvData[$counter][$csvDataArr[$i]] = $csvValue[$i];

$counter++;

}

}

return $this->csvData;

}

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

Php代码



<?

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

Php代码



<?

$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>";

?>