| 以下为引用的内容： <body onload="f.a.select();"> <?php echo 'a:'.htmlspecialchars($a); echo '<br>a1:'; $a1 = eregi_replace('(^[_.][:alnum:]-]+@([[:alnum:]][[:alnum:]-]*.)+[[:alpha:]]{2,3}$)',' <a href="mailto:\1">\1</a> ', $a) ; echo htmlspecialchars($a1); echo "<br>a1:$a1"; echo '<br>a2:'; $a2 = eregi_replace('([[:alnum:]]+://([[:alnum:]][[:alnum:]-]*\.)+[[:alpha:]]{2,3}([#\?/\\][^#\?/\\][:space:]][^[:space:]]*)?)', '<a href="\1" target="_blank">\1</a>', $a); echo htmlspecialchars($a2); echo "<br>a2:$a2"; // eregi('^[_.][:alnum:]-]+@([[:alnum:]][[:alnum:]-]*\.)+[[:alpha:]]{2,3}$',$a) or die("not a email"); ?> <form name="f"> <input name="a" value="<?php echo $a; ?>"> <input type="submit" > </form> </body> |