请问下php如何快速判断大量远程文件是否存在
远程文件是一个跳转
如
header("Location: http://www.baidu.com");
每次获取,可能相同,可能不同
大概每小时判断一次,每次需要判断1千个左右
我本来想的是用get_header函数来判断,但是发现效率不高
请教下各位有没有什么好的方法
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