*/functionfn_yandex_metrika_oauth_info(){if(!fn_string_not_empty(Registry::get('addons.rus_yandex_metrika.application_id')) || !fn_string_not_empty(Registry::get('addons.rus_yandex_metrika.application_password'))) {return__('yandex_metrika_oauth_info_part1',array('[callback_uri]'=>...
Assert::stringNotEmpty($type,'The return value type must be a non-empty string. Got: %s'); Assert::nullOrStringNotEmpty($description,'The return value description must be a non-empty string or null. Got: %s');$this->value = $value;$this->type = $type;$this->description = $descri...
if(is_string($a)){ echo "0 is string;"; }else{ echo "0 is not string;"; } if(!$a){ echo "0 is false;"; }else{ echo "0 is not false;"; } // 判断 '' 和 0、null、empty、false 之间的关系 $a = ''; echo "'' 和 0、empty、null、false 之间的关系:"; if($a == ...
140141if(is_string($a))142{143echo"'' is string;";144}145else146{147echo"'' is not string;";148}149150if(!$a)151{152echo"'' is false;";153}154else155{156echo"'' is not false;";157}158159//判断 null 和 ''、0、empty、false 之间的关系160$a=null;161echo"null 和 ''、0、e...
// Evaluates as true because $var is setif (isset($var)) { echo '$var is set even though it is empty';}?> 示例#2 在字符串偏移量上使用empty() PHP 5.4 修改了当传入的是字符串偏移量时, empty() 的行为 <?php$expected_array_got_string = 'somestring';var_dump(empty($expected_...
PHP empty() function The PHP empty() function used to check whether the string is empty or not. In PHP the empty() function return true if the variable has empty or zero value and it return false if string has non-empty or non-zero value. PHP empty() function syntax: empty(“string...
if_not_empty;fastcgi_paramGATEWAY_INTERFACECGI/1.1;fastcgi_paramSERVER_SOFTWAREnginx/$nginx_version;fastcgi_paramREMOTE_ADDR$remote_addr;fastcgi_paramREMOTE_PORT$remote_port;fastcgi_paramSERVER_ADDR$server_addr;fastcgi_paramSERVER_PORT$server_port;fastcgi_paramSERVER_NAME$server_name;#PHPonly,requiredif...
echo '$var is either 0 or not set at all'; } // 结果为 false,因为 $var 已设置 if (!isset($var)) { echo '$var is not set at all'; } ?> 另: The following things are considered to be empty: "" (an empty string)
{// apply a string filter and make sure we still have somthing leftif($uri = filter_var($uri, FILTER_SANITIZE_URL)) {// make sure the uri is not malformed and return the pathnameif($uri = parse_url($uri, PHP_URL_PATH)) {return static::format($uri, $server);}// woah jackie...
use Illuminate\Support\Arr; $string = 'Laravel'; $array = Arr::wrap($string); // ['Laravel']If the given value is null, an empty array will be returned:use Illuminate\Support\Arr; $array = Arr::wrap(null); // []data_fill()...