PHP String Pattern Replace

Question

I have a set of strings like this:

Pants [+$50]
Shirts [+$10]
Jeans [+$5]
Jackets [+$100]

How can I remove the ' [xxx]' in these lines and leaving just the item name (without the trailing space)? I was told to define a regular expression, not sure how that works...

Paul · Accepted Answer · 2012-05-19 04:25:59Z

1

That's actually a bit of a confusing regex, since [ and ] are special characters:

$str = 'Pants [+$50]';
$str = rtrim(preg_replace('/\[[^\]]*\]/', '', $str));

// 'Pants'

Basically the partern \[[^\]]*\] means to match a literal [ followed by 0 or more characters that are not ] followed by a ]. The second string in preg_replace is what it gets replaced with. In this case the empty string since we want to remove it. Then we use rtrim to trim any trailing whitespace.

answered May 19, 2012 at 4:25

Paul

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Cylian · Accepted Answer · 2012-05-19 04:27:56Z

0

Try this one:

The RegEx

(?im)[ \t]*\[[^\]\[]+\][ \t]*$

Code

$result = preg_replace('/^(.+?)[ \t]*\[[^\][]+\][ \t]*$/im', '$1', $subject);

answered May 19, 2012 at 4:27

Cylian

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