Why in_array() is not working in this case? (array from file())

Question

Why is this code not working?

I have test.txt it contains:

A
B
C

My PHP code is:

$arr = file('test.txt');

if (in_array('A', $arr)) {
   echo 'A is found';
}

Result. nothing. But this following code works fine:

if (in_array('C', $arr)) {
    echo 'C is found';
}

Can someone help me?

What does the loaded array look like when you print_r or var_dump it? — GordonM
– GordonM, Commented Jun 30, 2011 at 7:42

KingCrunch · Accepted Answer · 2011-06-30 06:45:34Z

4

Because file() will not remove the newline symbols from the end of each line, if you don't tell him to do so

$arr = file('test.txt', FILE_IGNORE_NEW_LINES);

or remove it yourself, what will remove any other whitespace from the beginning and end of each line

$array = array_map('trim', file('test.txt'));

answered Jun 30, 2011 at 6:45

KingCrunch

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1 Comment

Ok I am a noob, this was so quick and fixed all my issues for now. Thanks