PHP add number beginning of variable

Question

Greeting, need help to solve this problem.

$x = 5;
$y = 19;
$z = 100;

This number must be in 4 digit only. Example if return 19 it must be 0019. How to added '0' in the beginning of variable.

output:
$x = 0005;
$y = 0019;
$z = 0100;

str_pad($value, 4, '0', STR_PAD_LEFT);

mwweb
– mwweb

2018-03-30 03:25:55 +00:00
Commented Mar 30, 2018 at 3:25 — mwweb
– mwweb, Commented Mar 30, 2018 at 3:25

ArtisticPhoenix · Accepted Answer · 2018-03-30 03:43:35Z

3

Use sprintf :

sprintf('%04d', 15);

Alternatively you can also use str_pad:

str_pad($value, 4, '0', STR_PAD_LEFT);

edited Mar 30, 2018 at 3:43

ArtisticPhoenix

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answered Mar 30, 2018 at 3:39

TianSong

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1 Comment

ArtisticPhoenix Over a year ago

Nice, I always forget about sprintf. I edited it to put it in code blocks easier to read...

mwweb · Accepted Answer · 2018-03-30 03:31:40Z

2

str_pad

$number = 19;
$val = str_pad($number, 4, '0', STR_PAD_LEFT);
echo $val;
// 0019

answered Mar 30, 2018 at 3:31

mwweb

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1 Comment

ArtisticPhoenix Over a year ago

I don't like this answer, it's to obvious,. plus someone mentioned it in the comments... {sarcasm}. No it's good I love str_pad works good for a line separator in CLI eg. echo str_pad('', 64, '=') prints a line of 64 ========

R B · Accepted Answer · 2018-03-30 04:00:28Z

1

Use str_pad()

$x = 5;
$y = 19;
$z = 100;
echo str_pad($x, 4, '0', STR_PAD_LEFT)."<br>";
echo str_pad($y, 4, '0', STR_PAD_LEFT)."<br>";
echo str_pad($z, 4, '0', STR_PAD_LEFT);

Output

0005
0019
0100

answered Mar 30, 2018 at 4:00

R B

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Comments

srp · Accepted Answer · 2018-03-30 03:28:13Z

0

Try this out

    $output  =  substr('0000'.$Input, -4);

answered Mar 30, 2018 at 3:28

srp

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Comments

ArtisticPhoenix · Accepted Answer · 2018-03-30 03:37:47Z

0

You guys took all the good answers

$x = 23;

while(strlen($x)<4)$x='0'.$x;

echo $x;

Outputs

Test it online!

Sorry this is all that was left.

answered Mar 30, 2018 at 3:37

ArtisticPhoenix

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Comments

chris85 · Accepted Answer · 2018-03-30 04:50:06Z

0

$x = 5;
$y = 19;
$z = 100;
$x= "000".$x;  
$y= "000".$y;
$z= "000".$z;`

This form is simple or

<?php 
$number=12443;
$format = number_format($number, 2, '.', '');
echo $format;
?>

edited Mar 30, 2018 at 4:50

chris85

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answered Mar 30, 2018 at 3:32

user8717594

1 Comment

ArtisticPhoenix Over a year ago

You know if you do 4 spaces, it puts it in a bigger code block? But you have to put text (without 4 spaces) after it, to break out of it.

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