Php get value from text file - php

Question

I have this textfile:
foo: bar
el: macho
bing: bong
cake color: blue berry
mayo: ello
And I what I'm trying to accomplish is that if I "look" for foo, it returns bar (if I look for bing, it should return bong). A way a tried to accomplish this is first search though the file, return the line with the result, put it in a string and remove everything before the ":" and display the string.
// What to look for
$search = 'bing';
// Read from file
$lines = file('file.txt');
foreach($lines as $line)
{
// Check if the line contains the string we're looking for, and print if it does
if(strpos($line, $search) !== false)
echo $line;
$new_str = substr($line, ($pos = strpos($line, ',')) !== false ? $pos + 1 : 0);
}
echo "<br>";
echo "bing should return bong:";
echo $new_str;
But it doesn't work. Up here is just one of the many things I've tried.
Sources:
Many stackoverflow links on and comparable searches:
https://www.google.com/search?client=opera&q=php+remove+everything+after
https://www.google.com/search?client=opera&q=php+search+text+file+return+line
I've asked a question before, but the answers are to "professional" for me, I really need a noob-proof solution/answer. I've been trying to figure it out all day but I just can't get this to work.
Edit:
It's solved! Thank you so much for your time & help, I hope this might be useful to someone else to!

Answer 1

This should work with what you are looking for, I tested it on my server and it seems to fit what you are looking for.
$lines_array = file("file.txt");
$search_string = "bing";
foreach($lines_array as $line) {
if(strpos($line, $search_string) !== false) {
list(, $new_str) = explode(":", $line);
// If you don't want the space before the word bong, uncomment the following line.
//$new_str = trim($new_str);
}
}
echo $new_str;
?>

Answer 2

I would do it this way:
foreach($lines as $line)
{
// explode the line into an array
$values = explode(':',$line);
// trim the whitspace from the value
if(trim($values[1]) == $search)
{
echo "found value for ".$search.": ".$values[1];
// exit the foreach if we found the needle
break;
}
}

Answer 3

$search = 'bing';
// Read from file
$lines = file('text.txt');
$linea='';
foreach($lines as $line)
{
// Check if the line contains the string we're looking for, and print if it does
if(strpos($line, $search) !== false) {
$liner=explode(': ',$line);
$linea.= $liner[1];
}
}
echo 'Search returned: '. $linea;
Explanation: - $linea var is created before loop, and it will contain search result. If value is found on line - explode string, and make array, get second var from array, put it in search results container variable.

Answer 4

As your data is almost YAML [see lint], you could use a parser in order to get the associated PHP array.
But if can go with your solution as well:
// What to look for
$search = 'bing';
// Read from file
$lines = file('file.txt');
foreach($lines as $line)
{
// Check if the line contains the string we're looking for, and print if it does
if(strpos($line, $search) !== false){
echo array_pop(explode(":", $line));
}
}

Answer 5

Use fgetcsv:
$bits = array();
if (($handle = fopen('t.txt','r')) !== FALSE) {
while (($data = fgetcsv($handle, 0, ":")) !== FALSE) {
$bits[$data[0]] = $data[1];
}
}
# Now, you search
echo $bits['foo'];
$bits will have a key for each split part, which makes your ultimate goal quite simple. Here is what it looks like:
Array
(
[foo] => bar
[el] => macho
[bing] => bong
[cake color] => blue berry
[mayo] => ello
)