php int to bool

Type hints, type safeReal-Park Learning videoThe original link of the park learningOne of the most compelling new features in PHP 7 is undoubtedly the scalar type hints. We can use scalar type hints in function parameters and return values, and we

This article introduces the Python built-in bool function in detail. English document: Classbool([X]) Return a Boolean value, I. e. oneTrueOrFalse.XIs converted using the standard truth testing procedure. IfXIs false or omitted, this returnsFalse;

Thinkphp3.2 View model query bool (false) to solve array('picTitle','picToken','picCategroy','picAuthor','picPostTime','_type'=>'LEFT'), 'picture_attachment' =>array('pictureid','pictureurl','creattime','_on'=>'picture.picToken = picture_

php Execution Principle PHP is a very simple application, the development of a very high efficiency of a language, its weak type of variable can save the programmer a lot of time and effort to define variables, type conversion and so on. It is a

thinkphp 3.2 View model query out bool (false) solve It's written in this model. namespace Home\model;Use Think\model\viewmodel;Class Picviewmodel extends viewmodel{ Public $viewFields =array ( ' Picture ' = = Array (' Pictitle ', '

It's written in this model. Array (' Pictitle ', ' pictoken ', ' Piccategroy ', ' picauthor ', ' picposttime ', ' _type ' = ' left '), ' picture_ Attachment ' =>array (' Pictureid ', ' pictureurl ', ' creattime ', ' _on ' = ' =

I connected using pdo and printed it using var_dump. I found that the field of the int type in mysql is printed and changed to the string type. I don't know what the problem is, is there a way for php to display the actual mysql field type? I

PHP operating mechanism and principle (underlying), and php operating mechanism. The PHP operating mechanism and principle (underlying). when talking about the php operating mechanism, we should first introduce the php module. php has three modules

This article we mainly share with you the PHP bottom operating mechanism of the detailed, first we will share with you PHP design concept and features, PHP four layer system, etc., hope to help everyone. 1. PHP Design concept and Features

Recently in the development process need to get a class method of the number of parameters, name and parameter order, based on the name of the parameter from the $_get value. If the method prototype is test ($uid, $score), then I know that it needs