Reading commaseparated string into array

[Martin]

Hi, I need some help on reading commaseparated strings into arrays as numbers.

When I use

$data = "12.4,11.3,13.2";
$myarray = explode(',',$data);

I get strings, not numbers:.

$myarray:array =
0 = "12.4"
1 = "11.3"
2 = "13.2"

where I need

$myarray:array =
0 = 12.4
1 = 11.3
2 = 13.2

What to do?

[Ewoud Dronkert]

On Mon, 18 Apr 2005 10:58:54 -0400, Martin < > wrote:

$data = "12.4,11.3,13.2";
$myarray = explode(',',$data);
I get strings, not numbers:.

It's probably good enough; whenever you use variables in a numerical
context, they are treated as numbers, even if they are numbers in a
string. If you *have* to make them numbers first, try:

function makefloat( $a )
{
return (float)$a;
}
$numdata = array_map( 'makefloat', $strdata ); // PHP >= 4.0.6
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[Good Man]

Ewoud Dronkert <fi*******@lastname.net.invalid> wrote in
news:t3********************************@4ax.com:

On Mon, 18 Apr 2005 10:58:54 -0400, Martin < > wrote:

$data = "12.4,11.3,13.2";
$myarray = explode(',',$data);
I get strings, not numbers:.

It's probably good enough; whenever you use variables in a numerical
context, they are treated as numbers, even if they are numbers in a
string.

You know, I think this *used* to be true, but somewhere mid-PHP4 upgrades,
a lot of my scripts (actually, ALL 'numbers' that were coming via explode
()) stopped working and I had to specifically float() the array contents.

[Martin]

On Mon, 18 Apr 2005 17:26:11 +0200, Ewoud Dronkert <fi*******@lastname.net.invalid> wrote:

On Mon, 18 Apr 2005 10:58:54 -0400, Martin < > wrote:

$data = "12.4,11.3,13.2";
$myarray = explode(',',$data);
I get strings, not numbers:.
It's probably good enough; whenever you use variables in a numerical
context, they are treated as numbers, even if they are numbers in a
string. If you *have* to make them numbers first, try:

Some of the classes I use will not work with arrays of strings, so thanks.
function makefloat( $a )
{
return (float)$a;
}
$numdata = array_map( 'makefloat', $strdata ); // PHP >= 4.0.6

[Ewoud Dronkert]

On Mon, 18 Apr 2005 10:57:59 -0500, Good Man wrote:

whenever you use variables in a numerical context, they are treated as
numbers, even if they are numbers in a string.

You know, I think this *used* to be true, but somewhere mid-PHP4 upgrades,
a lot of my scripts (actually, ALL 'numbers' that were coming via explode
()) stopped working and I had to specifically float() the array contents.

Really? This works fine in php 4.3.9 and php5:

foreach ( explode( ',', '1,2.7,-3.14' ) as $n ) echo ($n + 1)."\n";

gives

2
3.7
-2.14
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Thunderbird E-mail and Newsgroups - http://gettbird.com/

[Good Man]

Ewoud Dronkert <fi*******@lastname.net.invalid> wrote in
news:cr********************************@4ax.com:

You know, I think this *used* to be true, but somewhere mid-PHP4
upgrades, a lot of my scripts (actually, ALL 'numbers' that were
coming via explode ()) stopped working and I had to specifically
float() the array contents.

Really? This works fine in php 4.3.9 and php5:

foreach ( explode( ',', '1,2.7,-3.14' ) as $n ) echo ($n + 1)."\n";

gives

2
3.7
-2.14

interesting.... but yeah, really, scripts that were working fine for over a
year just stopped working correctly (php upgrade) and i had to recode a few
pages and float() each exploded number before multiplying against another
variable (also a number).... i was confused as could be, i guess i still
am!