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Home Backend Development PHP Tutorial 相同字符串不相等的问题

相同字符串不相等的问题

Jun 23, 2016 pm 01:42 PM

说明:从一个页面采集ip和端口,$ip和$duankou是采集的,然后发现不能用,但是手动输入可以用,对比了
两个字符串,发现长度不相同,但是编码相同,请教这该怎么办
现在是 $b 是有效的,$a无效,


$a="tcp://".$ip.":".$duankou;$b="tcp://77.81.105.147:7808";echo $a."<br>";echo $b."<br>"; 	 $encode = mb_detect_encoding($a, array("ASCII","UTF-8","GB2312","GBK","BIG5")); 	  $encodes= mb_detect_encoding($b, array("ASCII","UTF-8","GB2312","GBK","BIG5")); 			   echo $encode."<br>";		echo $encodes."<br>";	$changdu1=	strlen($a);	$changdu2=	strlen($b);		echo $changdu1."<br>";	echo $changdu2;if($a==$b){echo "相等";}else{echo "不等";}
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输出:

//字符tcp://77.81.105.147:7808tcp://77.81.105.147:7808//编码ASCIIASCII//长度4224//结果不等
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回复讨论(解决方案)

var_dump($a, $b, $encode, $encodes);
贴出结果

最好是
echo base64_encode(serialize(array($a, $b, $encode, $encodes)));
贴出结果

采集的数据里有不可见的空字符吧,把ip和port trim()一下试试

最好是
echo base64_encode(serialize(array($a, $b, $encode, $encodes)));
贴出结果



结果
YTo0OntpOjA7UzoyNDoidGNwOi8vNzcuODEuMTA1LjE0Nzo3ODA4IjtpOjE7Uzo0MjoidGNwOi8vPHRkPjc3LjgxLjEwNS4xNDc8L3RkPjo8dGQ+NzgwODwvdGQ+IjtpOjI7Uzo1OiJBU0NJSSI7aTozO1M6NToiQVNDSUkiO30=
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采集的数据里有不可见的空字符吧,把ip和port trim()一下试试


trim() 过了,还是一样的

$s = 'YTo0OntpOjA7UzoyNDoidGNwOi8vNzcuODEuMTA1LjE0Nzo3ODA4IjtpOjE7Uzo0MjoidGNwOi8vPHRkPjc3LjgxLjEwNS4xNDc8L3RkPjo8dGQ+NzgwODwvdGQ+IjtpOjI7Uzo1OiJBU0NJSSI7aTozO1M6NToiQVNDSUkiO30=';$a = unserialize(base64_decode($s));var_dump($a);
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array(4) {  [0]=>  string(24) "tcp://77.81.105.147:7808"  [1]=>  string(42) "tcp://<td>77.81.105.147</td>:<td>7808</td>"  [2]=>  string(5) "ASCII"  [3]=>  string(5) "ASCII"}
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原因很明显了吧?
其实你在浏览器中查看网页源代码就可以发现的

原来问题在这,我疏忽了,多谢了

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