Find the regular expression for filtering alt

Regular expression for filtering alt

Obtain the regular expression for filtering alt in PHP. alt can be filtered out in three cases.
Alt = "xxxxxxxxxxxx"
Alt = 'xxxxxxxxxxxxxxxx'
Alt = xxxxxxxxxxxx

You must be able to filter out the above three cases.


Example:







......



It is required to filter various situations without filtering other content. Thank you.

Reply to discussion (solution)

$s =<<< TXTTXT;echo preg_replace('/alt=([\'"]?).+?\b\1/is', '', $s);

Obtain the regular expression for filtering alt in PHP. alt can be filtered out in three cases.
Alt = "xxxxxxxxxxxx"
Alt = 'xxxxxxxxxxxxxxxx'
Alt = xxxxxxxxxxxx

You must be able to filter out the above three cases.


Example:







......



It is required to filter various situations without filtering other content. Thank you.
$ Str ='



';
Echo preg_replace ('/(. *) (alt = [\ "\']?. *? [\ "\ ']? \ S +) (. *)/',' $1 $ 3', $ str );

$s =<<< TXTTXT;echo preg_replace('/alt=([\'"]?).+?\b\1/is', '', $s);

The method you provided may only be suitable for the example I wrote above. I will give the actual content and I will know that there is a problem with filtering.

Obtain the regular expression for filtering alt in PHP. alt can be filtered out in three cases.
Alt = "xxxxxxxxxxxx"
Alt = 'xxxxxxxxxxxxxxxx'
Alt = xxxxxxxxxxxx

You must be able to filter out the above three cases.


Example:







......



It is required to filter various situations without filtering other content. Thank you.
$ Str ='



';
Echo preg_replace ('/(. *) (alt = [\ "\']?. *? [\ "\ ']? \ S +) (. *)/',' $1 $ 3', $ str );

The method you provided may only be suitable for the example I wrote above. I will give the actual content and I will know that there is a problem with filtering.

I know that I have a problem with the regular expression. adding that \ B is a last resort.
However, since the data in your example can be satisfied, you can.
You can't let me list the possible situations? What are you doing?

$s =<<< TXT
            

          
TXT;echo preg_replace('/alt=([\'"]?).+?\1(\s|>)/is', '$2', $s);

Obtain the regular expression for filtering alt in PHP. alt can be filtered out in three cases.
Alt = "xxxxxxxxxxxx"
Alt = 'xxxxxxxxxxxxxxxx'
Alt = xxxxxxxxxxxx

You must be able to filter out the above three cases.


Example:







......



It is required to filter various situations without filtering other content. Thank you.
$ Str ='



';
Echo preg_replace ('/(. *) (alt = [\ "\']?. *? [\ "\ ']? \ S +) (. *)/',' $1 $ 3', $ str );

The method you provided may only be suitable for the example I wrote above. I will give the actual content and I will know that there is a problem with filtering.

Are you sure you want to test me?

$ Str = <TXT

TXT;
Echo preg_replace ('/(.*?) (Alt = ["\ ']?. *? ["\ ']?) (\ S + |>)/',' $1 $ 3', $ str );
I forgot to lean on the situation where there is no space at the end. I can add the case where there is no space at the end.

Thank you very much!