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This article mainly introduces the usage of str_pad() function in php. It analyzes the function, parameter meaning and specific usage method of str_pad() function in php in more detail. Friends who need it can refer to it
The example in this article describes the usage of str_pad() function in php. Share it with everyone for your reference, the details are as follows:
str_pad() Function fills the string with the new length.
Syntax:
str_pad(string,ength,pad_string,pad_type);
Parameter list:
| Parameters | Description |
|---|---|
| string | Required. Specifies the string to be filled. |
| length | Required. Specifies the new string length. If the value is less than the original length of the string, no operation is performed. |
| pad_string | Optional. Specifies the string used for padding. The default is blank. |
| pad_type | Optional. Specifies which side of the string to fill. Possible values: STR_PAD_BOTH - Pad both sides of the string. If it's not an even number, the right side gets extra padding. STR_PAD_LEFT - pad the left side of the string. STR_PAD_RIGHT - Pad the right side of the string. default. |
For example:
class test{
private $var;
public function __construct($var){
$this->var=$var;
}
public function test(){
$result=str_pad($this->var,30,"*");
return $result;
}
}
$T=new test("hello");
$result=$T->test();
echo $result;
output:
hello*************************
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