Function ereg_replace() is deprecated - How to clear this bug? [duplicate]

问题

This question already has an answer here:

• How can I convert ereg expressions to preg in PHP? 4 answers

I have written following PHP code:

$input=\"menu=1&type=0&\";

print $input.\"<hr>\".ereg_replace(\'/&/\', \':::\', $input);

After running above code, it gives following warning,

Deprecated: Function ereg_replace() is deprecated

How can I resolve this warning.

回答1:

Switch to preg_replaceDocs and update the expression to use preg syntax (PCRE) instead of ereg syntax (POSIX) where there are differencesDocs (just as it says to do in the manual for ereg_replaceDocs).

回答2:

print $input."<hr>".ereg_replace('/&/', ':::', $input);

becomes

print $input."<hr>".preg_replace('/&/', ':::', $input);

More example :

$mytext = ereg_replace('[^A-Za-z0-9_]', '', $mytext );

is changed to

$mytext = preg_replace('/[^A-Za-z0-9_]/', '', $mytext );

回答3:

change the call to ereg_replace to use preg_replace instead

回答4:

http://php.net/ereg_replace says:

Note: As of PHP 5.3.0, the regex extension is deprecated in favor of the PCRE extension.

Thus, preg_replace is in every way better choice. Note there are some differences in pattern syntax though.

回答5:

IIRC they suggest using the preg_ functions instead (in this case, preg_replace).

回答6:

Here is more information regarding replacing ereg_replace with preg_replace

来源：https://stackoverflow.com/questions/3132844/function-ereg-replace-is-deprecated-how-to-clear-this-bug