Question

我有一个字符串：

$var = explode(",", $var);

当我使用爆炸时：

[Item 1]
[Item 2]
[Item, 3]

这也会抛出方括号内的逗号。

我想回复：

 intent.setClassName(CallingActivity.this, activityToLaunch.getComponentName().getClassName());

运行我正在使用的foreach（）{}语句。有什么想法吗？

Answer 1

private func _fetchRecordChangesFromCloud() {
    if !_fetching {
        // this is the first and only time this code is called in GCD recusion

        // we clean the caches we use to collect the results of the fetch
        // so we can then save the record in the correct order so references can be created
        _fetchedModifiedRecords = []
        _fetchedDeletedRecordIDs = []

        // mark fetching has started
        _fetching = true
    }

    let operation = CKFetchRecordChangesOperation(recordZoneID: _customRecordZoneID, previousServerChangeToken: _serverChangeToken)

    operation.recordChangedBlock = { (record: CKRecord?) in
        if let record = record {
            println("Received record to save: \(record)")
            self._fetchedModifiedRecords.append(record)
        }
    }

    operation.recordWithIDWasDeletedBlock = { (recordID: CKRecordID?) in
        if let recordID = recordID {
            println("Received recordID to delete: \(recordID)")
            self._fetchedDeletedRecordIDs.append(recordID)
        }
    }

    operation.fetchRecordChangesCompletionBlock = {
        (serverChangeToken: CKServerChangeToken?, clientChangeToken: NSData?, error: NSError?) -> Void in

        if let error = error {
            println("Error in fetching record changes: \(error)")
            // try again next sync
            self._fetchAfterNextSuccessfullSync = true
            self._fetching = false
            return
        }

        // fetched records successfuly
        println("fetched records successfuly")

        if let serverChangeToken = serverChangeToken {
            self._serverChangeToken = serverChangeToken
        }

        if operation.moreComing {
            // we need to create another operation object and do it again
            dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0)) {
                self._fetchRecordChangesFromCloud()
            }
        } else {
            // we are finally done

            // process the fetched records
            self._processFetchedRecords()

            // save all changes back to persistent store
            self._saveBackgroundContext()

            // we are done
            self._fetching = false
        }
    }

    self._privateDatabase.addOperation(operation)
}

- doh忘记了分隔符已丢失所以这是一个粗略的选项，可以将这些[]重新放入：

$var = "[Item 1],[Item 2],[Item, 3]";

$var = explode("],[", $var);

print_r($var);

可能更好地切换到正则表达式拆分，我会在一秒内写出

最佳性感回答：

<?php
$var = "[Item 1],[Item 2],[Item, 3]";

$var = explode("],[", $var);

foreach ($var as $v){

  if(substr($v,0,1)!='['){
   $v='['.$v; 
  }

    if(substr($v,-1)!=']'){
$v=$v.']'; 
  }

    $out[]=$v; 



}
echo '<pre>';
print_r($out);

演示：http://codepad.viper-7.com/6qgSzB

Answer 2

它无法正常工作。但是可以用

来完成

$var = "[Item 1],[Item 2],[Item, 3]";

$varArr = explode("],", $var);

$newArr= array();
foreach($varArr as $key=>$val)
    $newArr[$key] = $val . "]";

echo "<pre>";
print_r($newArr);
echo "</pre>";

Answer 3

如何使用正则表达式提取这些信息？

$var = "[Item 1],[Item 2],[Item, 3]";
preg_match_all("(\[.+?\])", $var, $result);

print_r($result[0]);

爆炸数组逗号但不在方括号内

3 个答案: