php 2007-7-28 23:02
如何在PHP程序中防止盗链
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[color=#0000ff]$[/color][color=#008080]act[/color] [color=#0000cc]=[/color] [color=#0000ff]$[/color][color=#008080]_GET[/color][color=#0000cc][[/color][color=#ff00ff]'act'[/color][color=#0000cc]][/color][color=#0000cc];[/color]
[color=#0000ff]switch[/color][color=#0000cc]([/color][color=#0000ff]$[/color][color=#008080]act[/color][color=#0000cc])[/color] [color=#0000cc]{[/color]
[color=#0000ff]default[/color] [color=#0000cc]:[/color]
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[color=#0000ff]case[/color] [color=#ff00ff]"down"[/color] [color=#0000cc]:[/color] down[color=#0000cc]([/color][color=#0000cc])[/color][color=#0000cc];[/color] [color=#0000ff]break[/color][color=#0000cc];[/color]
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[color=#0000ff]function[/color] displayHTML[color=#0000cc]([/color][color=#0000ff]$[/color][color=#008080]id[/color][color=#0000cc])[/color] [color=#0000cc]{[/color]
[color=#ff0000]setcookie[/color][color=#0000cc]([/color][color=#ff00ff]"visited"[/color][color=#0000cc],[/color] [color=#ff00ff]"true"[/color][color=#0000cc])[/color][color=#0000cc];[/color]
[color=#ff9900]// print your HTML.
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[color=#0000ff]function[/color] down[color=#0000cc]([/color][color=#0000ff]$[/color][color=#008080]id[/color][color=#0000cc])[/color] [color=#0000cc]{[/color]
[color=#0000ff]if[/color][color=#0000cc]([/color][color=#0000cc]![/color] [color=#ff0000]isset[/color][color=#0000cc]([/color][color=#0000ff]$[/color][color=#008080]_COOKIE[/color][color=#0000cc][[/color][color=#ff00ff]'visited'[/color][color=#0000cc]][/color][color=#0000cc])[/color] [color=#0000cc])[/color] [color=#ff0000]print[/color] [color=#ff00ff]"你盗联?"[/color][color=#0000cc];[/color]
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[color=#ff9900]//..............................
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