根据字符串php中的特定单词获取字符串的特定部分

Question

I have a string, who contains multiple values. A new line is recognised as | symbol. The values between | belong together.

Now, I am trying for example if IKK and Homo sapiens are present in the line, to return the other values in that line (96, NC_000001 , IKK , inhibitor of nuclear factor, IKK = IKKI).

I use explode function for separating the string based on | symbol. But if I use the explode function again now based , symbol. I got again an array. But if I now would look for homo sapiens & IKK and want to return the other values from that same line, I got stuck.

I have the following string:

    $var = 'IKK ,Homo sapiens,96, NC_000001 , IKK , inhibitor of nuclear factor, 
    IKK = IKKI |GAL4 ,Saccharomyces cerevisiae,85588,NC_00114 , GAL4 ,0, GAL81
    |TRP ,Influenza HA,0,0,0,0,0|TES,Influenza HA,5,0,TES,0,0';

My code:

function terms($result){
    $result = (explode("|",$result));
    $final = array_unique($result);
    return $final;
}
$test = terms($var);
foreach ($test as $key => $value){
    echo "key: $key -- value: $value"."<br \>
"; 
    $res = explode(",",$value);
    foreach ($res as $v){
        echo "tester: >> $v"."<br \>
"; 
    }
}

I probably should end up with something like this. But I don't find a way to get there. Is it even possible to get this structure?

if ($d[1] == "Homo sapiens" && $d[0] == "IKK"){
    $k = $d[2] # 96
    $s = $d[3] # NC_000001
 }

As end result I would like to save the values 96, NC_000001 , IKK , inhibitor of nuclear factor, IKK = IKKI separately again and again in a separate variable. $number = 96 $acc = NC_000001

Answer 1

Due to white-spaces involved, I think you are unable to compare values. Please try this :

<?php

$var = 'IKK ,Homo sapiens,96, NC_000001 , IKK , inhibitor of nuclear factor, 
    IKK = IKKI |GAL4 ,Saccharomyces cerevisiae,85588,NC_00114 , GAL4 ,0, GAL81
    |TRP ,Influenza HA,0,0,0,0,0|TES,Influenza HA,5,0,TES,0,0';

function terms($result){
    $result = (explode("|",$result));
    $final = array_unique($result);
    return $final;
}


function compare_terms($res){
    $d = array_map('trim',$res);
    if ($d[1] == "Homo sapiens" && $d[0] == "IKK") {
        $k = $d[2] ; 
        echo $k ."<br \>
"; // 96
        $s = $d[3] ; 
        echo $s ."<br \>
"; // NC_000001
    }
}


$test = terms($var);
foreach ($test as $key => $value){
    echo "key: $key -- value: $value"."<br \>
"; 
    $res = explode(",",$value);
    compare_terms($res);
}

Here in the compare_terms function, we have applied trim function on each value of array by using : $d = array_map('trim',$res);

Now we can compare values accordingly