Matching One or More Characters To match one or more instances of a character (or set),simply append a + character. + matches one or more characters (at least one; zero would not match). Whereas a matches a, a+ matches one or more as. Similarly, whereas [0-9] matches any digits, [0-9]+ Read more…
Escaping : Metacharacters are characters that have special meaning within regular expressions. The period (.) is a metacharacter; it is usedto match any single character. Similarly, the left bracket ([) is a metacharacter; it is used to mark the beginning of a set. Because metacharacters take on special significance when Read more…
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Sometime we want to fetch the information from a domain. In PHP file_get_contents function would work fine. We can easily get few pages without getting blocked but if we want to circumvent few security measures then we have to use CURL with proxy and custom headers. Below is the example of Read more…