make string of N characters

问题

Say I have a number=20 and a $value=7.

If I want to make a string of 20 7's using PHP. what's the quickest way to make this?

So output like:

$a='77777777777777777777';

Any functions to make this easier?

回答1:

$a=str_repeat($value,$number);

回答2:

You can use str_repeat(), e.g.

$a=str_repeat('7', 20);

回答3:

Use str_repeat():

$a = str_repeat('7', 20);

回答4:

str_repeat is pretty easy

$a = str_repeat('7', 20);

回答5:

$a = str_repeat('7', 20);

str_repeat()

...or maybe:

$a = str_pad('', 20, '7');

str_pad()

来源：https://stackoverflow.com/questions/9010712/make-string-of-n-characters