Array variable key/value PHP

Question

I am currently trying to use PHP to get some information from a csv file. I am using the following code and getting the following output;

function readCSV($csvFile){
    $file_handle = fopen($csvFile, 'r');
    while (!feof($file_handle) ) {
        $line_of_text[] = fgetcsv($file_handle, 1024);
    }
    fclose($file_handle);
    return $line_of_text;
}

$csvFile = '500.csv';
$csv = readCSV($csvFile);
$keys = $csv[0];
$step = $csv[1];
foreach ($step as $k=>$v)
{
    $a = array("$keys[$k]");
    $b = array("$v");
    $c = array_combine($a, $b);
    echo '<pre>';
    print_r($c);
    echo '</pre>';
}

and I get the output in individual arrays like;

Array
(
    [first_name] => bob
)
Array
(
    [last_name] => smith
)
Array
(
    [company_name] => bobs logs
)

and I want the output to be in one single array, displayed like;

Array
(
    [first_name] => bob
    [last_name] => smith
    [company_name] => bobs logs
)

If anyone could point out where I am going wrong it would be appriciated!

Since you have 3 arrays, you could just do repl.it/Cg3C $a + $b + $c — ʰᵈˑ
– ʰᵈˑ, Commented Jul 27, 2016 at 14:09

RomanPerekhrest · Accepted Answer · 2016-07-27 14:11:17Z

3

array_combine function

Returns the combined array, FALSE if the number of elements for each array isn't equal.

Your code creates a new array on each loop iteration.
To get a single array change your loop code as shown below:

...
$c = [];
foreach ($step as $k => $v)
{
    $c[$keys[$k]] = $v;    
}
echo '<pre>';
print_r($c);
echo '</pre>';

answered Jul 27, 2016 at 14:11

RomanPerekhrest

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Comments

JustOnUnderMillions · Accepted Answer · 2016-07-27 14:08:02Z

2

Change:

$a = array("$keys[$k]");
$b = array("$v");
$c = array_combine($a, $b);

To:

$c[$keys[$k]] = $v;

And do this after the loop:

echo '<pre>';
print_r($c);
echo '</pre>';

answered Jul 27, 2016 at 14:08

JustOnUnderMillions

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Comments

Martin · Accepted Answer · 2016-07-27 14:26:38Z

1

<?php
function readCSV($csvFile)
{
    $file_handle = fopen($csvFile, 'r');
    while (!feof($file_handle)) {
        $line_of_text[] = fgetcsv($file_handle, 1024);
    }
    fclose($file_handle);
    return $line_of_text;
}

$csvFile = '500.csv';
$csv     = readCSV($csvFile);
$keys    = $csv[0];
$step    = $csv[1];
$output = array();
foreach ($step as $k => $v) {
    $a = array("$keys[$k]");
    $b = array("$v");
    $c = array_combine($a, $b);
    $output = array_merge($output, $c);
}
echo '<pre>';
print_r($output);
echo '</pre>';

what changes did I make? I took outside foreach those echo and print_r and added

$output = array_merge($output, $c);

Which merge every new array as a new element inside our $output array

then finally we print $output array.

This should be working as you want, anyway if you need to change something in the future you can check array_merge function here

edited Jul 27, 2016 at 14:26

answered Jul 27, 2016 at 14:09

Martin

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1 Comment

ʰᵈˑ Over a year ago

You should explain your answer some more.

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