Looking for a PHP programming code.

Question

Find all numbers within 2000 that are divisible by 7 and contain 7. Change a line every 10 characters

Display on the web page in the php environment

It would be better if you could give some comments

Answer 1

//More rigorous writing

$num=1;for ($i = 0; $i <= 2000; $i ) { if ($i != 0) { if ($ i % 7 == 0 || strstr($i, 7)) { echo $i.'--'; if ($num % 10 == 0) { echo "<br/>"; $num ;                                 }

Answer 2

//代码少一点

for($i=0;$i<=2000;$i ){    if($i != 0){        if($i%7==0||strstr($i,7)){            echo $i.'-';            if($i==0){                echo "<br/>";            }        }    }}

Answer 3

It should look like this

##<?php

$num = 0;\\Set the initial number of outputs to 0

for($i=0;$i<=2000;$i ){

if( $i % 7==0 || strchr($i."",'7')){ \\If it is divisible by 7 or contains 7, it will be output

echo $i.",";

$num ;\\Output once, the number of outputs will be increased by one

}

if($num>=10){\\If the number of output reaches 10 times or exceeds 10 times, break the line

echo "<br/>";

$num=0;\\After newline, the output count is reset to 0

}

}

?>