PHP->Text file content to array

Question

I'm trying to convert this text file:

mammals|A living thing that gives birth to their young.
mammals|A living thing that produce milk for their young.
mammals|A living thing that can grow hair or fur.
warm-blooded|The ability to produce own body heat
lungs|Mammals use this to breathe.
lungs|Mammals breathe with __________.
lungs|__________ helps mammals to breathe.
birth|Mammals give __________ to their young.
milk|Mammals produce this to feed their young.
hair|Some mammals, especially human, grow __________ on their skin.
fur|Some mammals, such as bears, grow __________ on their skin.

into PHP array as:

array(
mammals=>A living thing that gives birth to their young.
mammals=>A living thing that produce milk for their young.
mammals=>A living thing that can grow hair or fur.
warm-blooded=>The ability to produce own body heat
lungs=>Mammals use this to breathe.
lungs=>Mammals breathe with __________.
lungs=>__________ helps mammals to breathe.
birth=>Mammals give __________ to their young.
milk=>Mammals produce this to feed their young.
hair=>Some mammals, especially human, grow __________ on their skin.
fur=>Some mammals, such as bears, grow __________ on their skin.
)

I tried:

$array_mammals = explode("\n", file_get_contents('cw_mammals.txt'));

foreach ($array_mammals as $key => $value) {
    $list_mammals[] = explode('|', $value);
}
print_r($list_mammals);

i got:

Array ( 
[0] => Array ( [0] => mammals [1] => A living thing that gives nirth to their young. ) 
[1] => Array ( [0] => mammals [1] => A living thing that produce milk for their young. ) 
[2] => Array ( [0] => mammals [1] => A living thing that can grow hair or fur. ) 
[3] => Array ( [0] => warm-blooded [1] => The ability to produce own body heat ) 
[4] => Array ( [0] => lungs [1] => Mammals use this to breathe. ) 
[5] => Array ( [0] => lungs [1] => Mammals beathe with __________. ) 
[6] => Array ( [0] => lungs [1] => __________ helps mammals to breathe. ) 
[7] => Array ( [0] => birth [1] => Mammals give __________ to their young. ) 
[8] => Array ( [0] => milk [1] => Mammals produce this to feed their young. ) 
[9] => Array ( [0] => hair [1] => Some mammals, especially human, grow __________ on their skin. ) 
[10] => Array ( [0] => fur [1] => Some mammals, such as bears, grow __________ on their skin. ) )

I need the keys to the first word of every line but I can't seem to get the approach right. Any pointers is appreciated.

What you're proposing isn't possible as an associative array due to the fact that you'd have duplicate keys. You'll need to re-think your desired result. — esqew
– esqew, Commented Oct 27, 2020 at 3:54

Chilarai · Accepted Answer · 2020-10-27 04:01:06Z

1

You cannot have an array like you desire as @esqew mentioned. An array should always have unique keys. But you can try this in your existing problem, if this helps.

<?php
$array_mammals = explode("\n", file_get_contents('cw_mammals.txt'));

foreach ($array_mammals as $key => $value) {
    $list_mammals[] = explode('|', $value);
}

foreach ($list_mammals as $list) {
    echo $list[0]. "-". $list[1];
}


?>

answered Oct 27, 2020 at 4:01

Chilarai

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Al-Amin · Accepted Answer · 2020-10-27 06:22:57Z

0

As you can not have same key in an array but you can make an array of that particular key to keep the same type of values for your problem.

$array_mammals = explode("\n", file_get_contents('cw_mammals.txt'));

$mammals = [];
foreach ($array_mammals as $value) {
    $key_vallue = explode('|', $value);
    $mammals[ $key_vallue[0] ] [] = $key_vallue[1]; 
}

var_dump($mammals);

edited Oct 27, 2020 at 6:22

answered Oct 27, 2020 at 6:15

Al-Amin

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