PHP Matching Patterns With Preg_Match() – String Function

preg_match() accepts four arguments:
    a regular expression string,
    a source string,
    an array variable (which stores matches),
    and an optional fourth flag argument.
preg_match() returns 0 if a match is found and 1 otherwise.
These numbers represent the number of matches the function can make in a string. <?
print "<pre>\n";
print preg_match("/is/", "this is a test", $array) . "\n";
print_r( $array );
print "


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