Question

How to match any single character in a string using regular expression with PHP

Answer 1

// We need a period (.) in preg_match regular expression to matches any single character

echo preg_match("/b.d/", "bud") . "\n"; // returns true (1)
echo preg_match("/b.d/", "bid") . "\n"; // returns true (1)
echo preg_match("/b.d/", "bed") . "\n"; // returns true (1)
echo preg_match("/b.d/", "b d") . "\n"; // returns true (1)
echo preg_match("/b.d/", "bat") . "\n"; // returns false (0)
echo preg_match("/b.d/", "bd") . "\n"; // returns false (0)
echo preg_match("/b.d/", "bead") . "\n"; // returns false (0)
echo preg_match("/ab.dx/", "ab.dx") . "\n"; // returns false (1)



/*
run:

1
1
1
1
0
0
0
1

*/

70+ SQL courses for beginners and professionals