php - str replace with mask text -
i have text need delete fron code , using variants this:
$answer = str_replace('<td style="background-color:#80f9cc;">', '', $answer); $answer = str_replace('<td style="background-color:#e1e3e4;">', '', $answer); $answer = str_replace('<td style="background-color:#d1d3d4;">', '', $answer); $answer = str_replace('<td style="background-color:#73f6ab;">', '', $answer); $answer = str_replace('<td style="background-color:#3ceb88;">', '', $answer); is there way create 1 str_replace function delete text wia mask?
preg_replace() function need.
assuming want identify , replace hex representations of colors, code along lines:
$answer = preg_replace('/<td style="background-color:#[0-9a-f]{6};">/i', '', $answer); the i pcre modifier tells preg_replace ignore character cases.
it identifies , replaces when color code contains 6 hex digits. in order make identify color codes using 3-digit rgb notation need change [0-9a-f]{6} part of regexp [0-9a-f]{3}([0-9a-f]{3})?. or use simpler expression matches color codes between 3 , 6 digits: [0-9a-f]{3,6}
you put \s* after colon (:) make match when 1 or more whitespaces present after background-color: part.
the updated code is:
$answer = preg_replace( '/<td style="background-color:\s*#[0-9a-f]{3,6};">/i', '', $answer ); however, if want match colors can put color codes separated | instead:
$answer = preg_replace( '/<td style="background-color:\s*#(80f9cc|e1e3e4|d1d3d4|73f6ab|3ceb88);">/i', '', $answer ); short explanation of regular expression pieces:
<td style="background-color: # plain text, matches if exact \s* # matches 0 or more (*) space characters (\s) # # plain text, matches 1 '#' ( # start of group, doesn't match 80f9cc # matches '80f9cc' |e1e3e4 # or (|) 'e1e3e4' |d1d3d4 # or 'd1d3d4' |73f6ab # or ... |3ceb88 # or ... ) # end of group ;"> # plain text; matches text 
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