<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> 非常全面的一个php技术网站,
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