The function has returned 1.The array is empty. Usesizeof()Function to Check Whether an Array Is Empty in PHP We can also use the built-in functionsizeof()to check whether an array is empty or not. Thesizeof()function helps in finding the size in numbers. What we will do is that...
Below is the syntax of theempty()method: empty ($array); PHP code to check if an array is empty or not <?php// array declaration$array1=array("hello","world");$array2=array();//checking whether arrays are empty or notif(empty($array1)){echo"array1 is empty";}else{echo"array1...
或者count($data)返回数组的大小。如果你不确定变量是否是数组，你可以先检查类型，然后检查大小。
$options = array( OssClient::OSS_STORAGE => OssClient::OSS_STORAGE_IA ); // 设置Bucket的读写权限为公共读,默认是私有读写。 $ossClient->createBucket($bucket, OssClient::OSS_ACL_TYPE_PUBLIC_READ, $options); } catch (OssException $e) { printf(__FUNCTION__ . ": FAILED\n"); printf(...
private function checkTime() { if (F('CRON_CONFIG')) { $crons = F('CRON_CONFIG'); } else if (C('CRON_CONFIG')) { $crons = C('CRON_CONFIG'); } if (!empty($crons) && is_array($crons)) { $update = false; $log = array(); ...
class Requests_Utility_FilteredIterator extends ArrayIterator { /** * Callback to run as a filter * * @var callable */ protected $callback; ... public function current() { $value = parent::current(); $value = call_user_func($this->callback, $value); ...
is_array(\$data) \&& array_walk_recursive($data, 'think_filter'); 显而易见,这里返回的是false 最后返回$data = 1; 到这里,整个I函数的数据流就分析完了 前面的I函数就走完了,接下来就是 if($cid == 0) $this->show('*{ padding: 0; margin: 0; } div{ padding: 4px 48px;} body{...
因为$force没定义默认为 null ,所以进入array_udiff_assoc,由于$this->data和$this->origin默认也为null,所以不符合第一个if判断,最终$data=0,也即满足前面所提的第二个条件,$data!=null。 然后查看 checkAllowFields 方法调用情况。 我们想进入字符拼接操作,就需要进入else,所以要让$this->field=null,$this-...
Check these helpful resources: Step 1 Installation The primary way of installing Yii is by using Composer. Install Composer Get a basic project template Run./yii serve Step 2 Welcome Page You get a nice template which includes: MVC Some static pages ...
If a save is already running, this command will fail and return FALSE. Example $redis->bgSave(); config Description: Get or Set the Redis server configuration parameters. Prototype $redis->config(string $operation, string|array|null $key = NULL, ?string $value = NULL): mixed; Return ...