Sometimes using preg_replace I get some errors, when this happends
you need
to add a / at the start and the end of the regular expresion:
preg_replace('/^[A-Za-z]/', '', $contents);
You might like this tool, which shows live highlighting of regular
expressions:
http://www.gskinner.com/RegExr/
Suppose the correct regexp is ^[A-Za-z]+
Once you figure out the correct regular expression, surround it with
any delimiter, typically slashes, in addition to being quoted for the
PHP function. Though regular expressions are typically delimited with
slashes, you can use ampersands or commas or other symbols. (This is
helpful if your regular expression is attempting to match slashes; if
you use a non-slash delimiter, you won't need to escape the slashes.)
preg_replace('/^[A-Za-z]+/', '', $contents);
or
preg_replace('@^[A-Za-z]+@', '', $contents);
After the closing delimiter, but before the closing quote mark, you
can use flags such as i, s, m, or x.
preg_replace('/^[A-Z]+/i', '', $contents); // [A-Z] becomes case
(i)nsensitive
The flags i, s, m, and x correspond to the checkboxes ignoreCase,
dotall, multiline, and extended, respectively, in the above tool.
Richard
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