Remove duplicates line from text file (PHP) [duplicate]

Question

I'm trying to remove duplicates lines from text file. My codes thus work though but its brings error which i have looked through the codes. Everything works. I used the inbuilt function like the array_unique but the array numbers start from 0 instead of 1. So i'm wondering if anyone could help me . Thanks

<?php
hott.txt(content)
[email protected]
[email protected]
[email protected]
[email protected]
[email protected]
[email protected]
[email protected]
[email protected]
[email protected]
[email protected]
[email protected]
[email protected]
[email protected]

$contents=file("hott.txt");
$array = [];
foreach ($contents as $k=>$v){

$v = trim($v);
$array[$v]++;
}
print_r($array);


?>

```

If possible please add ex. file to question

K.B
– K.B

2022-07-02 17:27:29 +00:00
Commented Jul 2, 2022 at 17:27 — K.B
– K.B, Commented Jul 2, 2022 at 17:27
ok sir i will let me see

Diana Studebaker
– Diana Studebaker

2022-07-02 17:34:05 +00:00
Commented Jul 2, 2022 at 17:34 — Diana Studebaker
– Diana Studebaker, Commented Jul 2, 2022 at 17:34

K.B · Accepted Answer · 2022-07-02 18:02:04Z

0

with your file output would be as follows

<?php
print_r(file("test.txt"));
?>

Array ( [0] =>[email protected] [1] => [email protected] [2] => [email protected] ...... )

Change needed

    $contents=file("hott.txt");

    $array = array_map('trim', $contents);

    $array = array_unique($array); //add this line to your code
    
    print_r($array);

edited Jul 2, 2022 at 18:02

answered Jul 2, 2022 at 17:48

K.B

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4 Comments

Diana Studebaker Over a year ago

Notice: Undefined index: [email protected] in . It works tho but got that error

K.B Over a year ago

Updated answer ..please check

K.B Over a year ago

it is worth to you..please do upvote

Diana Studebaker Over a year ago

alright i will, thanks sir

MuhammadMP · Accepted Answer · 2022-07-02 17:50:56Z

0

$lines = explode("\n", $lines);
$lines = array_unique($lines);
$lines = implode("\n", $lines);

Then write the $lines content into your file.

answered Jul 2, 2022 at 17:50

MuhammadMP

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