PHP Array with multiple lines

Question

I have an array that looks like the example below. How to I get only the value in the first line (the audio file path)? I have already tried array_rand() which only gives me values letter by letter. Sorry if this has been answered before, couldn't find anything myself. Thanks in advance.

Array
(
[0] => path/to/audiofile.mp3
3500440
audio/mpeg

[1] => path/to/anotheraudiofile.mp3
5661582
audio/mpeg

...
)

Edit: var_dump gives me this:

array(2) {
[0]=>
string(98) "path/to/audiofile.mp3
3500440
audio/mpeg
"
[1]=>
string(95) "path/to/anotheraudiofile.mp3
5661582
audio/mpeg
"

}

What do you mean by "I only get the value in the first line"? Do you mean that $array[0] only returns the first line, or you only see the first line? What system are you running this code on (windows, Linux, OSX or *NIX)? what does strlen tell you? More info would be nice — Elias Van Ootegem
– Elias Van Ootegem, Commented Oct 20, 2014 at 10:15
@EliasVanOotegem: $array[0] returns everything at the moment, I only need the first line. Running on windows. I would have given you more info if I weren't so lost. Will look into the other stuff. — kath
– kath, Commented Oct 20, 2014 at 10:19
Where do you get these values from. Are these newline characters between the lines? Or <br> HTML code? — yunzen
– yunzen, Commented Oct 20, 2014 at 10:25

Francois · Accepted Answer · 2014-10-20 12:32:59Z

3

Have you tried to split on line return ?

$tmp = explode(PHP_EOL, $myArray[0]);
$tmp = explode('"', $tmp[0]);
$path = $tmp[1];

edited Oct 20, 2014 at 12:32

answered Oct 20, 2014 at 10:16

Francois

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3 Comments

Kevin Over a year ago

use double quotes on the newline

kath Over a year ago

This worked, but I had to correct around. Double quotes on newline just like @Ghost said. '\n' doesn't work. Also $ on the variables within the explode() function. Thanks!

Elias Van Ootegem Over a year ago

@charlenemasters: Please, don't hard-code the end of line character. PHP has a pre-defined constant PHP_EOL that holds the correct end of line character for the system that it's running on. If your server is running windows, PHP_EOL will be \r\n. For other systems, PHP_EOL will be \n. Using that constant makes your code more portable

Elias Van Ootegem · Accepted Answer · 2014-10-20 10:26:19Z

The real solution would be to alter the code that is actually constructing this array, however, you can easily extract what you need with a couple array function (of which there are many):

$array[0] = explode(PHP_EOL, $array[0]);//PHP_EOL is the new-line character
echo $array[0][0];//get the first line

You can process the entire array like so:

function extractFirstLine($val)
{
    $val = explode(PHP_EOL, $val);
    return $val[0];
}
$array = array_map('extractFirstLine', $array);

Or, since PHP 5.3 the more common approach:

$array = array_map(function($v)
{
    $v = explode(PHP_EOL, $v);
    return $v[0];
}, $array);

And since PHP 5.4, you can write this even shorter:

$array = array_map(function($v)
{
    return (explode(PHP_EOL, $v))[0];
}, $array);

That ought to do it (Note, this code is untested, but the man pages should help you out if something isn't quite right).

Alex · Accepted Answer · 2014-10-20 10:35:23Z

0

B"e aware of it depends on the os Line maybe diffrent character, you may use \r\n if you using a win os $Path = substr($array[0] , 0 , strpos("\n",$array[0]))

answered Oct 20, 2014 at 10:35

Alex

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2 Comments

Elias Van Ootegem Over a year ago

OR use the platform dependant, predefined runtime constant PHP_EOL, which will be \r\n on a windows system, and \n on Linux

Alex Over a year ago

Yes I wasn't have any knowledge about this constant.

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