问题
I have several method to transform php array to csv string both from stackoverflow and google. But I am in trouble that if I want to store mobile number such as 01727499452, it saves as without first 0 value. I am currently using this piece of code: Convert array into csv
Can anyone please help me.
Array
[1] => Array
(
[0] => Lalu ' " ; \\ Kumar
[1] => Mondal
[2] => 01934298345
[3] =>
)
[2] => Array
(
[0] => Pritom
[1] => Kumar Mondal
[2] => 01727499452
[3] => Bit Mascot
)
[3] => Array
(
[0] => Pritom
[1] => Kumar Mondal
[2] => 01711511149
[3] =>
)
[4] => Array
(
[0] => Raaz
[1] => Mukherzee
[2] => 01911224589
[3] => Khulna University 06
)
)
My code block:
function arrayToCsv( array $fields, $delimiter = ';', $enclosure = '"', $encloseAll = false, $nullToMysqlNull = false ) {
$delimiter_esc = preg_quote($delimiter, '/');
$enclosure_esc = preg_quote($enclosure, '/');
$outputString = "";
foreach($fields as $tempFields) {
$output = array();
foreach ( $tempFields as $field ) {
if ($field === null && $nullToMysqlNull) {
$output[] = 'NULL';
continue;
}
// Enclose fields containing $delimiter, $enclosure or whitespace
if ( $encloseAll || preg_match( "/(?:${delimiter_esc}|${enclosure_esc}|\s)/", $field ) ) {
$field = $enclosure . str_replace($enclosure, $enclosure . $enclosure, $field) . $enclosure;
}
$output[] = $field." ";
}
$outputString .= implode( $delimiter, $output )."\r\n";
}
return $outputString; }
Thanks,
Pritom.
回答1:
You could use str_putcsv function:
if(!function_exists('str_putcsv'))
{
function str_putcsv($input, $delimiter = ',', $enclosure = '"')
{
// Open a memory "file" for read/write...
$fp = fopen('php://temp', 'r+');
// ... write the $input array to the "file" using fputcsv()...
fputcsv($fp, $input, $delimiter, $enclosure);
// ... rewind the "file" so we can read what we just wrote...
rewind($fp);
// ... read the entire line into a variable...
$data = fread($fp, 1048576);
// ... close the "file"...
fclose($fp);
// ... and return the $data to the caller, with the trailing newline from fgets() removed.
return rtrim($data, "\n");
}
}
$csvString = '';
foreach ($list as $fields) {
$csvString .= str_putcsv($fields);
}
More about this on GitHub, a function created by @johanmeiring.
回答2:
Is this what you need?
$out = "";
foreach($array as $arr) {
$out .= implode(",", $arr) . "\r\n";
}
It runs trough your array creating a new line on each loop seperating the array values with a ",".
回答3:
Are you sure the numbers are actually being saved without the leading zero? Have you looked at the actual CSV output in a text editor?
If you've just opened up the CSV file in a spreadsheet application, it is most likely the spreadsheet that is interpreting your telephone numbers as numeric values and dropping the zeros when displaying them. You can usually fix that in the spreadsheet by changing the formatting options on that particular column.
回答4:
Since it's a CSV and not something like JSON, everything is going to be read as a string anyway so just convert your number to a string with:
(string)$variablestrval($variable)(which I would prefer here)- concatenate with an empty string like
$variable . ''
PHP's gettype() would also be an option. You can type cast every field to a string (even if it already is one) by using one of the methods I described or you can call out just the number field you're after by doing this:
if (gettype($field) == 'integer' || gettype($field) == 'double') {
$field = strval($field); // Change $field to string if it's a numeric type
}
Here's the full code with it added
function arrayToCsv( array $fields, $delimiter = ';', $enclosure = '"', $encloseAll = false, $nullToMysqlNull = false ) {
$delimiter_esc = preg_quote($delimiter, '/');
$enclosure_esc = preg_quote($enclosure, '/');
$outputString = "";
foreach($fields as $tempFields) {
$output = array();
foreach ( $tempFields as $field ) {
// ADDITIONS BEGIN HERE
if (gettype($field) == 'integer' || gettype($field) == 'double') {
$field = strval($field); // Change $field to string if it's a numeric type
}
// ADDITIONS END HERE
if ($field === null && $nullToMysqlNull) {
$output[] = 'NULL';
continue;
}
// Enclose fields containing $delimiter, $enclosure or whitespace
if ( $encloseAll || preg_match( "/(?:${delimiter_esc}|${enclosure_esc}|\s)/", $field ) ) {
$field = $enclosure . str_replace($enclosure, $enclosure . $enclosure, $field) . $enclosure;
}
$output[] = $field." ";
}
$outputString .= implode( $delimiter, $output )."\r\n";
}
return $outputString;
}
回答5:
I'm using this function to convert php array to csv. It's working also for multidimensional array.
public function array_2_csv($array) {
$csv = array();
foreach ($array as $item=>$val) {
if (is_array($val)) {
$csv[] = $this->array_2_csv($val);
$csv[] = "\n";
} else {
$csv[] = $val;
}
}
return implode(';', $csv);
}
回答6:
The function above is not exactly right cause it considers \n like an element, which is not what we want as each line must be only separated by \n. So a more efficient code would be:
function array2csv($array, $delimiter = "\n") {
$csv = array();
foreach ($array as $item=>$val)
{
if (is_array($val))
{
$csv[] = $this->array2csv($val, ";");
}
else
{
$csv[] = $val;
}
}
return implode($delimiter, $csv);
}
回答7:
Here is a solution that is a little more general purpose. I was actually looking for a way to make string lists for SQL bulk inserts. The code would look like this:
foreach ($rows as $row) {
$string = toDelimitedString($row);
// Now append it to a file, add line break, whatever the need may be
}
And here is the useful function that I ended up adding to my tookit:
/**
* Convert an array of strings to a delimited string. This function supports CSV as well as SQL output since
* the quote character is customisable and the escaping behaviour is the same for CSV and SQL.
*
* Tests:
* echo toDelimitedString([], ',', '\'', true) . "\n";
* echo toDelimitedString(['A'], ',', '\'', true) . "\n";
* echo toDelimitedString(['A', 'B'], ',', '\'', true) . "\n";
* echo toDelimitedString(['A', 'B\'C'], ',', '\'', true) . "\n";
* echo toDelimitedString([], ',', '\'', true) . "\n";
* echo toDelimitedString(['A'], ',', '"', true) . "\n";
* echo toDelimitedString(['A', 'B'], ',', '"', true) . "\n";
* echo toDelimitedString(['A', 'B"C'], ',', '"', true) . "\n";
*
* Outputs:
* <Empty String>
* 'A'
* 'A','B'
* 'A','B''C'
* <Empty String>
* "A"
* "A","B"
* "A","B""C"
*
* @param array $array A one-dimensional array of string literals
* @param string $delimiter The character to separate string parts
* @param string $quoteChar The optional quote character to surround strings with
* @param bool $escape Flag to indicate whether instances of the quote character should be escaped
* @return string
*/
function toDelimitedString(array $array, string $delimiter = ',', string $quoteChar = '"', bool $escape = true)
{
// Escape the quote character, since it is somewhat expensive it can be suppressed
if ($escape && !empty($quoteChar)) {
$array = str_replace($quoteChar, $quoteChar . $quoteChar, $array);
}
// Put quotes and commas between all the values
$values = implode($array, $quoteChar . $delimiter . $quoteChar);
// Put first and last quote around the list, but only if it is not empty
if (strlen($values) > 0) {
$values = $quoteChar . $values . $quoteChar;
}
return $values;
}
来源：https://stackoverflow.com/questions/16352591/convert-php-array-to-csv-string