php中foreach和for到底有没有区别,尤其是在处理多线程(本例是对IOS进行推送)方面?
db_array($sql);print_r("the array is:".$result);var_dump($result); $countArray = count($result); print_r("number:".$countArray); $passphrase = 'zhaojian'; $message = 'My first push notification!'; $ctx = stream_context_create(); stream_context_set_option($ctx, 'ssl', 'local_cert', 'ck.pem'); stream_context_set_option($ctx, 'ssl', 'passphrase', $passphrase); // Open a connection to the APNS server $fp = stream_socket_client( 'ssl://gateway.sandbox.push.apple.com:2195', $err, $errstr, 60, STREAM_CLIENT_CONNECT|STREAM_CLIENT_PERSISTENT, $ctx); if (!$fp) exit("Failed to connect: $err $errstr" . PHP_EOL); echo 'Connected to APNS' . PHP_EOL; // Create the payload body $body['aps'] = array( 'alert' => $message, 'sound' => 'default' ); // Encode the payload as JSON $payload = json_encode($body); //$result = array("2d4401e324e7bd0ce574508b0849c7584b965df4ab183c82b3da65855835ec27","e20f2879b0ff6b7c6554b44f339c9e4bade2ee4a5a3a6d5de77bda074269221f"); foreach ($result as $device) { $deviceToken = $device['appleID']; print_r("the ".$i." item :".$deviceToken); $msg = chr(0) . pack('n', 32) . pack('H*', $deviceToken) . pack('n', strlen($payload)) . $payload; $result = fwrite($fp, $msg, strlen($msg)); if (!$result) echo 'Message not delivered' . PHP_EOL; else echo 'Message successfully delivered' . PHP_EOL;} fclose($fp); ?>
这段代码是针对php对IOS推送的代码。
用foreach那里,如果改成for i=0 i
回复讨论(解决方案)
没有看到你的 for 循环的写法
但你的 foreach 中有
foreach ( $result as $device) {
$result = fwrite($fp, $msg, strlen($msg));
改变了原始量
如果 for 循环也是这样的话,自然就不行了
foreach 是对数组的引用进行循环的
没有看到你的 for 循环的写法
但你的 foreach 中有
foreach ( $result as $device) {
$result = fwrite($fp, $msg, strlen($msg));
改变了原始量
如果 for 循环也是这样的话,自然就不行了
foreach 是对数组的引用进行循环的
我用for是这样写的
for($i = 0; $i
这只是往服务器上传数据吧?涉及到修改值了吗?for($i = 0; $i {
$deviceToken = $result[$i]['appleID']; //从数组 $result 中取值
print_r("***".$deviceToken."**");
// Build the binary notification
$msg = chr(0) . pack('n', 32) . pack('H*', $deviceToken) . pack('n', strlen($payload)) . $payload;
// Send it to the server
$result = fwrite($fp, $msg, strlen($msg)); //改变了 $result 的值
if (!$result)
echo 'Message not delivered' . PHP_EOL;
else
echo 'Message successfully delivered' . PHP_EOL;
}for($i = 0; $i {
$deviceToken = $result[$i]['appleID']; //从数组 $result 中取值
print_r("***".$deviceToken."**");
// Build the binary notification
$msg = chr(0) . pack('n', 32) . pack('H*', $deviceToken) . pack('n', strlen($payload)) . $payload;
// Send it to the server
$result = fwrite($fp, $msg, strlen($msg)); //改变了 $result 的值
if (!$result)
echo 'Message not delivered' . PHP_EOL;
else
echo 'Message successfully delivered' . PHP_EOL;
}
得君解释,三生有幸!!!豁然开朗,其实把后面的result改个名称用for我试过了还是可以的,,碰巧,重名 了~~~