Re: How to convert array to string, and vice versa

Tim Streater wrote:
I have some items, numbered from 0 upwards. Some of them may have a string attached. All these items need to be represented in a single already existing database record. So, I thought of taking an array, as it might be looking thus (the values are all strings):

Key Value
--- -----
0 firstone
2 somestring
5 anotherstr


and so on, and converting it to a single string:

"'0', 'firstone', '2', 'somestring', '5', 'anotherstr'"

then I have a string I can write to the database record.

So I want to go from:

$myarr = array (0 => 'firstone', 2 => 'somestring', 5 => 'anotherstr');

to:

$mystring = "'0', 'firstone', '2', 'somestring', '5', 'anotherstr'";

Is there a quick way to do this mapping in both directions? (I don't mind if the string read/written to the database is not as above, as it won't be used for any other purpose).

I can't see any array or string function that looks designed for this or a similar purpose.

Thanks for any pointers.

-- tim

Something like this could be used to pack the string:

$foreach( $myarr as $key => $value ) {
$tmp[] = "'$key'";
$tmp[] = "'$value'";
}
$mystring = '"'.implode(', ', $tmp).'"';

Unpacking would be something like:
$tmp = substr($mystring, 1, strlen($mystring)-1);
$myarr = explode(', ', $tmp);

You may have to fudge it a bit to get the quotes all correct.

-david-

.

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