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What’s Different Between rtrim() and chop() ?

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Feb 06.2021

PHP Folks,

I don’t see any difference between these two functions in my tests:

“””‘
<?php
echo ‘<b>Line: ‘ .__LINE__ .'</b>’; echo ‘<br>’;
echo chop(‘motorbike’,’bike’);
echo ‘<br>’;
echo chop(‘motor bike’,’bike’);
echo ‘<br>’; echo ‘<br>’;
?>

<?php
echo ‘<b>Line: ‘ .__LINE__ .'</b>’; echo ‘<br>’;
echo chop(‘motorbike’,’motor’);
echo ‘<br>’;
echo chop(‘motor bike’,’motor’);
echo ‘<br>’; echo ‘<br>’;
?>

<?php
echo ‘<b>Line: ‘ .__LINE__ .'</b>’; echo ‘<br>’;
echo rtrim(‘motorbike’,’bike’);
echo ‘<br>’;
echo rtrim(‘motor bike’,’bike’);
echo ‘<br>’; echo ‘<br>’;
?>

<?php
echo ‘<b>Line: ‘ .__LINE__ .'</b>’; echo ‘<br>’;
echo rtrim(‘motorbike’,’motor’);
echo ‘<br>’;
echo rtrim(‘motor bike’,’motor’);
echo ‘<br>’; echo ‘<br>’;
?>
“””

to post a comment
PHP

9 Comments(s) ↴

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@NogDogFeb 06.2021 — It's amazing what you can learn if you RTFM.

https://www.php.net/chop :
> This function is an alias of: rtrim().
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@developer_webauthorFeb 11.2021 — @NogDog#1627689

Oh bluddy hell NogDog! Ha! Ha!

Why the hell didn't w3schools.com just mention one is alias of another ? Drat!

Anyway, thanks for pointing this out to me.
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@DigiturnalFeb 17.2021 — Hi Php Folks,

The rtrim() function removes whitespace or other predefined characters from the right side of a string. Related functions: ltrim() - Removes whitespace or other seeded characters from the left side of a string.

The chop() function in Perl is used to remove the last character from the input string. Syntax: chop(String) Parameters: String : It is the input string whose last characters are removed.

Returns: the last removed character.

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@marksmith121Feb 17.2021 — In terms of functionality there is (currently) no difference. They will both (currently) work the same as one is simply an alias of the other.

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@HarshShahFeb 23.2021 — Both chop() and rtrim() are used to remove whitespace and predefined characters from the right side of a string. The chop() function is the alias of rtrim() function.
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@VITSUSAFeb 23.2021 — @marksmith121#1628151 Why you are doing copy paste the answer from mentioned source?

https://stackoverflow.com/questions/28495291/chop-vs-rtrim#:~:text=Is%20there%20any%20difference%20between,an%20alias%20of%20the%20other.
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@developer_webauthorFeb 25.2021 — @VITSUSA#1628391

I thought you were asking me the question. I went to stackoverflow.com and see the question is different, even if topic same. Was gonna ask you if you were high (under drug influence) or not. But then realise you were asking someone else. Now ask me if I am high or not.

Answer: it's past midnight and I'm nodding on my chair! Lol.
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@VITSUSAFeb 26.2021 — @developer_web#1628525 You should read carefully which I have mentioned in the post. @marksmith121 has copied the answer from the source which I have mentioned in the post.

I think you should not support wrong things. I will pray to god, you will understand the sense:)
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@developer_webauthorFeb 26.2021 — @VITSUSA#1628554

I am not supporting him. You understood wrong. Later, I found him doing same in another thread of mine and he got a warning from NogDog.
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