[英]How to output a custom while loop php
我想在我的while循环中使用一个计数器作为自定义,假设我们有一个while循环<21,我正在尝试输出类似以下结果的结果:
1,2,
3,4,
5,6,7,
8,9,
10,11,
12,13,14,
15,16,
17,18,
19,20,21
我尝试编写这些代码
<?php
$counter = 1;
while ($counter <21) :
if( $counter == 1 || ($counter-1)%4 == 0 ) {
echo $counter."<br>";
}
if( $counter == 2 || ($counter-2)%4 == 0 ) { ?>
<div class="others">
<?php }
if( $counter != 1 && ($counter-1)%4 != 0 ) {
echo $counter.',';
}
if( $counter%4 == 0 ) { ?>
</div>
<?php }
$counter++;
endwhile;
但是输出是这样的
1
2,3,4,
5
6,7,8,
9
10,11,12,
13
14,15,16,
17
18,19,20,
解决了
@cannon提供了一个完美的解决方案,但是我想使用循环来调用数据库帖子,因此这就是我解决问题的原因...
<?php
$counter = 1;
$module = 7;
$i = 2;
$arr = [];
while ($counter <22) :
if( $counter == 1 || ($counter-1)% $module == 0 ) {
echo $counter.',';
}
if( $counter == 2 || ($counter-2)% $module == 0 ) {
echo $counter.',<br>';
}
if( $counter == 3 || ($counter-3)% $module == 0 ) {
echo $counter.',';
}
if( $counter == 4 || ($counter-4)% $module == 0 ) {
echo $counter.',<br>';
}
$i = $i + $module;
$arr[] = $i;
if(!in_array($counter,$arr)){
if( $counter == 5 || ($counter-5)% $module == 0 ) {
}
if( $counter != 1 && $counter != 2 && $counter != 3 && ($counter-1)% $module != 0
&& $counter != 4 && ($counter-3)% $module != 0 && ($counter-4)% $module != 0 ) {
echo $counter.',';
}
if( $counter% $module == 0 ) {
echo '<br>';
}
}
$counter++;
endwhile;
您可以尝试这样的操作,它应该可以像您描述的那样工作:
$counter = 1;
for($i = 1; $i < 21; $i++){
echo $i . ',';
if($counter % 6 == 0){
echo ++$i . ',<br>';
}
elseif($counter % 2 == 0){
echo '<br>';
}
$counter++;
}
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