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예 1. using backreferences followed by numeric literals.
?php $str = "april 15, 2003"; $pattern =" / (\w+) (\d+), (\d+) / i"; $replacement = "\${1}1,\$3"; print preg_replace($pattern, $replacement, $string); / * output ====== april1,2003 * /?
you can also return the variable representation by using true as second parameter to this function.
pre ?php $a = array (1, 2, array ("a", "b", "c")); var_export ($a); / * output: array (0 = 1, 1 = 2, 2 = array (0 = 'a', 1 = 'b', 2 = 'c',),) * / $b = 3.1; $v = var_export($b, true); echo $v; / * output:
decrypts the s/mime encrypted message contained in the file specified by infilename using the certificate and it's associated private key specified by recipcert and recipkey.
decrypts the s / mime encrypted message contained in the file specified by infilename using the certificate and it 's associated private key specified by recipcert and recipkey.
divides n by d, using fast "exact division" algorithm. this function produces correct results only when it is known in advance that d divides n.
this function produces correct results only when it is known in advance that d divides n.