Phison-up10 mass production tool v1.78.00 PHP automatically adds 0 to the left side of numbers

Copy the code The code is as follows:

echo "$newNumber" ; 
Example: If I want to add "4 zeros" in line 03, it will look like this.

Copy the code

The code is as follows:

$newNumber = substr(strval($sourceNumber+100000),1,5); ?>

In fact That is, how many total should be displayed? For digits, just add as many 0s after $sourceNumber+1, and the last number will be directly changed to display several digits.

Better way:
string str_pad (string $input, int $pad_length [, string $pad_string [, int $pad_type]] )

Copy the code

The code is as follows:

$ input = "Alien"; echo str_pad($input, 10); //produces "-=-=- Alien"                        str_pad($input, 10, "_", STR_PAD_BOTH);                                                                                                                                                                                                 produces produces "Alien_" ?>

Complete the length of the string. Use pad_string to pad. The default padding is on the right. If STR_PAD_LEFT, it is padded on the left. STR_PAD_BOTH is padded on both sides.
Use str_pad next time. After all, it is built-in and will definitely be faster than custom one.
/*
I don’t think your method above is very good. Let me introduce a method I wrote. The method function is as follows, so when you want the result 001, the method: dispRepair('1',3,'0')
Function: complement function
str: original string
type: type, 0 is complement, 1 Prepending
len: new string length
msg: padding characters
*/

Copy code

The code is as follows:


function dispRepair($str,$len,$msg,$type='1' ) {
$length = $len - strlen($str);
if($length<1)return $str;
if ($type == 1) {
$str = str_repeat($msg,$length). $str;
} else {

$str .= str_repeat($msg,$length); } return $str; }

The above introduces the phison-up10 mass production tool v1.78.00 PHP automatically adds 0 on the left side of the number, including the content of the phison-up10 mass production tool v1.78.00. I hope it will be helpful to friends who are interested in PHP tutorials.