PHP自动数组键引号

Question

I'm working on a large codebase that doesn't have quotes around any array keys, e.g. $_GET[page].

Does anyone have a script/regex that programmatically adds quotes to array keys for PHP?

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update

Here's what I ended up doing:

egrep -lRZ "\.php" . | \
    xargs -0 -l sed -i -e "s/\$\([a-zA-Z_]\+\)\[\([a-zA-Z_]\+\)\]/$\1['\2']/g"

This only handles one-dimensional arrays.

Answer 1

I hated doing this in the past. This will cover all but severe edge cases and multidimentional arrays. Either use preg_replace or something that allows regex for mass replace in all files (like Dreamweaver).

\$(\w+)\[(\w+)\]

Replace like so (\#, where # is the match offset):

$\1['\2']

I believe Dreamweaver's replace syntax is:

$$1['$2']

Multidimentional might work with (after you run the above):

\['(\w+)'\]\[(\w+)\]

['$1']['$2']

And finally, inspired by @MarcB's comment, in theory you could use PHP::Tokenizer. See the example and change the case statment to trigger on T_ARRAY and alter the array to conform before outputting it (and every other part of the file). If all works well, you'd get a new file, which you could then loop into SPL::DirectoryIterator and update all files in one go (now and in the future).