Convert Website To Android App Using Apache Cordova

https://youtu.be/9OnZuuJJlCk

1. cordova zomok com.zomok.app // create dir

2. cordova platform add android

3. cordova requirements

4. Install necessary plug-ins

 

 

5.Bulid android

6

JavaScript四舍五入并保留两位小数

在JavaScript中，有一个问题一直被没有很好地解决，就是小数点保留指定的位数，也就是我们通常说的Math.Round()函数。

首先，JavaScript有自带的Math.Round()函数，能够对一个浮点数进行四舍五入，但是返回的结果是个整数，无法精确到小数点后。

Number.toFixed()方法，能保留小数点后面的指定位数，但如果执行2.1.toFixed(2)的话，会返回2.10，而不是我们期待的2.1，所以，这个方法也不太可取。

最近我发现一个很简单的方法，假设我要对0.105进行四舍五入并保留两位小数，如果直接调用Math.Round()的话，结果是0，如果直接调用.toFixed(2)方法的话，会返回0.10，最简单有效的方法就是对0.105先乘以100，再调用Math.Round()，然后再除以100，就OK了。 

var number = 0.105;
alert(Math.round(number * 100) / 100);

网页弹出0.11

举一反三，如果你想保留三位小数，就是

Math.round(number * 1000) / 1000

如果你想转换为百分比，再保留两位小数，就是

(Math.round(number * 10000) / 100) + '%'

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版权声明：本文为CSDN博主「老朱.」的原创文章，遵循CC 4.0 BY-SA版权协议，转载请附上原文出处链接及本声明。
原文链接：https://blog.csdn.net/daguanjia11/article/details/48650711

Row count with PDO

$sql = "SELECT count(*) FROM `table` WHERE foo = ?"; 
$result = $con->prepare($sql); 
$result->execute([$bar]); 
$number_of_rows = $result->fetchColumn(); 

Upload APK file to Google app store

 

How to set up apache cordova

 

https://www.youtube.com/watch?v=snwV_8KeDjE

 https://www.youtube.com/watch?v=snwV_8KeDjE

PHP - FREE CODE ENCRYPTION | ALTERNATIVE OF ZEND | EASY| ENCODING | PROTECTED PHP CODE | TUTORIAL

 

 

Yes, you can definitely hide/encode/encrypt the php source code and 'others' can install it on their machine. You could use the below tools to achieve the same.

• Zend Guard
• IonCube
• SourceGuardian
• phpSHIELD
• phpBolt (free)

But these 'others' can also decode/decrypt the source code using other tools and services found online. So you cannot 100% protect your code, what you can do is, make it tougher for someone to reverse engineer your code.

Most of these tools above support Encoding and Obfuscating.

• Encoding will hide your code by encrypting it.
• Obfuscating will make your code difficult to understand.

You can choose to use both (Encoding and Obfuscating) or either one, depending on your needs.

https://stackoverflow.com/questions/4439320/how-do-i-protect-phone-number-from-bots

 

This is a...passing thought, though I'm not sure how practical it would be:

<span class="protectedNumber" title="01234567890"></span>

css:

span.protectedNumber:before {
    content: "Phone number: " attr(title);
}

https://www.w3schools.com/howto/howto_css_subnav.asp

 https://www.w3schools.com/howto/howto_css_subnav.asp

https://blog.back4app.com/flutter-alternatives/

 https://blog.back4app.com/flutter-alternatives/

show dot in span

 https://stackoverflow.com/questions/11426275/how-can-i-show-dots-in-a-span-with-hidden-overflow