源代码:
<HTML> <HEAD></HEAD> <FONT FACE="'Courier New',Verdana, Arial, Helvetica" SIZE=2> <!DOCTYPE html> <html> <body> <FONT COLOR=#ff0000><?php function myfunction($value,$key) { echo "The key $key has the value $value "; } $a=array("a"=>"red","b"=>"green","c"=>"blue"); array_walk($a,"myfunction"); ?></FONT> </body> </html> </HTML>
运行结果：
<HTML> <HEAD></HEAD> <FONT FACE="'Courier New',Verdana, Arial, Helvetica" SIZE=2> <!DOCTYPE html> <html> <body> <FONT COLOR=#ff0000>The key a has the value red The key b has the value green The key c has the value blue </FONT> </body> </html> </HTML>