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\n

\u5faa\u73af\u7ed3\u6784
  \u4e00\u3001while\u5faa\u73af<\/strong>
 while(\u8868\u8fbe\u5f0f)
 {
  \u5faa\u73af\u4f53;\/\/\u53cd\u590d\u6267\u884c\uff0c\u76f4\u5230\u8868\u8fbe\u5f0f\u4e3a\u5047
 }

\u4ee3\u7801\uff1a
$index = 1;
while ($index<5)
{
      print "Number is {$index}
";
     $index++;
}
print "Done";
\u8fd0\u884c\u7ed3\u679c\uff1a
Number is 1
Number is 2
Number is 3
Number is 4
Done

\u4e8c\u3001do while\u5faa\u73af<\/strong> <\/span>
do { <\/span>
      \u5faa\u73af\u4f53;\/\/\u53cd\u590d\u6267\u884c\uff0c\u76f4\u5230\u8868\u8fbe\u5f0f\u4e3a\u5047 <\/span>
} while(\u8868\u8fbe\u5f0f) <\/span>

\u4ee3\u7801\uff1a <\/span>
do { <\/span>
         $index++; <\/span>
         print "Number is {$index} <\/span>
"; <\/span>
} while($index<0); <\/span>
print "Done"; <\/span>
\u8fd0\u884c\u7ed3\u679c\uff1a
Number is 1
Done

Do While \u5faa\u73af\u8bed\u53e5\u4e0ewhile\u6709\u4e00\u5b9a\u7684\u533a\u522b,\u5b83\u4eec\u7684\u533a\u522b\u5c31\u662fdo while\u4e0d\u7ba1\u6761\u4ef6\u662f\u5426\u4e3a\u771f\u90fd\u4f1a\u5148\u6267\u884c\u4e00\u4e0b,\u800cwhile\u5fc5\u987b\u4e3a\u771f\u624d\u4f1a\u6267\u884c\u4e00\u6b21.<\/strong>

\u4e09\u3001for\u5faa\u73af<\/strong> <\/span>
 \u6839\u636e\u5faa\u73af\u6761\u4ef6\u4e0d\u540c\uff0c\u6709\u4e24\u79cd\u7c7b\u578b\u7684\u5faa\u73af <\/span>
\u4e00\u79cd\uff1a\u8ba1\u6570\u5faa\u73af (\u4e00\u822c\u4f7f\u7528for) <\/span>
 \u53e6\u4e00\u79cd\uff1a\u6761\u4ef6\u578b\u5faa\u73af (\u4e00\u822c\u4f7f\u7528 while   do-while) <\/span>
for (expr1; expr2; expr3) { <\/span>
   statement <\/span>
 } <\/span>
\u5176\u4e2d\u7684 expr1 \u4e3a\u6761\u4ef6\u7684\u521d\u59cb\u503c\u3002expr2 \u4e3a\u5224\u65ad\u7684\u6761\u4ef6\uff0c\u901a\u5e38\u90fd\u662f\u7528\u903b\u8f91\u8fd0\u7b97\u7b26\u53f7 (logical operators) <\/span>
\u5f53\u5224\u65ad\u7684\u6761\u4ef6\u3002expr3 \u4e3a\u6267\u884c statement \u540e\u8981\u6267\u884c\u7684\u90e8\u4efd\uff0c\u7528\u6765\u6539\u53d8\u6761\u4ef6\uff0c\u4f9b\u4e0b\u6b21\u7684\u5faa\u73af\u5224\u65ad\uff0c\u5982\u52a0\u4e00..\u7b49\u7b49\u3002\u800c statement <\/span>
\u4e3a\u7b26\u5408\u6761\u4ef6\u7684\u6267\u884c\u90e8\u5206\u7a0b\u5e8f\uff0c\u82e5\u7a0b\u5e8f\u53ea\u6709\u4e00\u884c\uff0c\u53ef\u4ee5\u7701\u7565\u5927\u62ec\u53f7 {}\u3002 <\/span>
\u4e0b\u4f8b\u662f\u7528 for \u5faa\u73af\u5199\u7684 "\u4ee5\u540e\u4e0d\u6562\u4e86" \u7684\u4f8b\u5b50\uff0c\u53ef\u4ee5\u62ff\u6765\u548c\u7528 while \u5faa\u73af\u7684\u6bd4\u8f83\u3002 <\/span>
<?php <\/span>
 for ($i=1; $i<=5; $i++) { <\/span>
   echo "$i. \u4ee5\u540e\u4e0d\u6562\u4e86 <\/span>
n"; <\/span>
 } <\/span>
 ?>\u8fd0\u884c\u7ed3\u679c\uff1a
1. \u4ee5\u540e\u4e0d\u6562\u4e86
2. \u4ee5\u540e\u4e0d\u6562\u4e86
3. \u4ee5\u540e\u4e0d\u6562\u4e86
4. \u4ee5\u540e\u4e0d\u6562\u4e86
5. \u4ee5\u540e\u4e0d\u6562\u4e86 

\u56db\u3001foreach\u5faa\u73af<\/strong> <\/span>

foreach \u8bed\u53e5\u7528\u4e8e\u5faa\u73af\u904d\u5386\u6570\u7ec4\u3002\u6bcf\u8fdb\u884c\u4e00\u6b21\u5faa\u73af\uff0c\u5f53\u524d\u6570\u7ec4\u5143\u7d20\u7684\u503c\u5c31\u4f1a\u88ab\u8d4b\u503c\u7ed9 value \u53d8\u91cf\uff08\u6570\u7ec4\u6307\u9488\u4f1a\u9010\u4e00\u5730\u79fb\u52a8\uff09 - \u4ee5\u6b64\u7c7b\u63a8 <\/span>

\u8bed\u6cd5\uff1a <\/span>
foreach (array as value) <\/span>
{ <\/span>
    code to be executed; <\/span>
} <\/span>
\u4ee3\u7801\uff1a <\/span>
<?php <\/span>
$arr=array("one", "two", "three"); <\/span>

foreach ($arr as $value) <\/span>
{ <\/span>
  echo "Value: " . $value . " <\/span>
"; <\/span>
} <\/span>
?> \u8fd0\u884c\u7ed3\u679c\uff1a
Value: one
Value: two
Value: three
\u4ee5\u4e0a\u4e3aPHP\u4e2d\u56db\u79cd\u5faa\u73af\u4f53\uff0c\u6839\u636e\u4e0d\u540c\u7684\u6761\u4ef6\u9009\u62e9\u76f8\u5e94\u7684\u5faa\u73af\u4f53\u8fd0\u7528<\/span><\/span><\/span><\/span><\/span><\/p>\n<\/div>","orderid":"0","title":"PHP\u5faa\u73af\u8bed\u53e5\u6df1\u5ea6\u7406\u89e3\u5206\u6790\u2014\u2014while, for, foreach, do while","smalltitle":"","mid":"0","fname":"PHP","special_id":"0","bak_id":"0","info":"0","hits":"5757","pages":"1","comments":"0","posttime":"2017-10-16 18:19:13","list":"1508149153","username":"admin","author":"","copyfrom":"","copyfromurl":"","titlecolor":"","fonttype":"0","titleicon":"0","picurl":"https:\/\/www.cppentry.com\/upload_files\/","ispic":"0","yz":"1","yzer":"","yztime":"0","levels":"0","levelstime":"0","keywords":"PHP<\/A> \u5faa\u73af<\/A> \u8bed\u53e5<\/A> \u6df1\u5ea6<\/A> \u7406\u89e3<\/A> \u5206\u6790<\/A> while<\/A> for<\/A> foreach<\/A>","jumpurl":"","iframeurl":"","style":"","template":"a:3:{s:4:\"head\";s:0:\"\";s:4:\"foot\";s:0:\"\";s:8:\"bencandy\";s:0:\"\";}","target":"0","ip":"113.108.110.181","lastfid":"0","money":"0","buyuser":"","passwd":"","allowdown":"","allowview":"","editer":"","edittime":"0","begintime":"0","endtime":"0","description":"PHP\u5faa\u73af\u8bed\u53e5\u6df1\u5ea6\u7406\u89e3\u5206\u6790\u2014\u2014while, for, foreach, do while","lastview":"1713595173","digg_num":"5445","digg_time":"0","forbidcomment":"0","ifvote":"0","heart":"","htmlname":"","city_id":"0"},"page":"1"}