? ??????? PHP?? ? ??? ???? ??? ??? ???. PHP?? ??? ??? ???? ?? ???? ??? ????. ??? C? C++ ?? ?? ????? ??? ?? ??? ??? ?? ? ???. ???? ??? ??, ? ??, ?? ?? ?? ??? ? ????. ? ??????? ??? ?? ??? ?? ??? ????. ??? ??? ????? for ??? ?????. for Each ??? ??? for ??? ???? ??? ??? ??? ?? ????. ??? ?? ????? ?? ??? ?? ??? ???? ??? ?? ??? ?? ?? ?????.

?? ????? ?? ?? ??

? ??, ????? ??, ????? ??? ?

PHP? ? ?? ?

??? PHP ? ??? 6?? ????.

• PHP? ??? ? ?????. ??? ?? ??? ?? ???? ? ?? ??? ??? ????. ?? ??? ???? ?? ??? ?????. I ?? ?? ?? for ??? 5?? ?? ???? 0?? ???? ? 5? ??? ?? 5? ?????. ?? for ??? ??? ?? ?????.
• ???? ?? for ??? 0?? ???? 5? ???? 5?? ?? ??? ????. ?? for ??? ??? ?? ?????.
• for ??? ??? ?? ?? ??? 0?? ???? ??? ???? 5 ??? ?? ?? ??? ?????. for ?? ???? ?? ?? ?? for ??? ????. ??? ?? j? 0?? ????? ? ??? ? ?? ?? ?(*)? ???? $j< 5 ?????.
• $j ?? 5?? ?? ???? ???? ????? ??? ?? ?? ?????. ?? i? ?? 1? ?????. ?? ?? 2?? ???? ?? j for ??? 5? ???? ? 5?? ?????.
• ? ??? i ?? 5?? ?? ??? 5? ?????. ?? 5?? ??? ???? ??? ???? ??? ??? ?????.

?? #1

??:

<?php
//example to demonstrate star pattern-1
for($i=0; $i<5; $i++) {
for($j=0; $j<5; $j++)
{
echo '*';
}
echo '<br>';
}
?>
<p><strong>??:</strong></p>
<p><img  src="/static/imghw/default1.png" data-src="https://img.php.cn/upload/article/000/000/000/172490831928314.png" class="lazy" alt="PHP? ? ??" ></p>
<h4>?? #2</h4>
<p>? ??? i for ??? 5? ???? i? ? ?? ?? ?? j for ??? ???? star *? ?????. j for ??? ?? ???? ? ?????. i? ?? ?? 1?? ? ??? ?????. ???? ?? 2? ?? ? ?? ? ? ?? ????, ?? 3? ?? ? ? ?? ???? ?? 5?? ?? ?? ??? ?????.</p>
<p><strong>??:</strong></p>
<pre class="brush:php;toolbar:false"><?php
//example to demonstrate star pattern-2
for($i=1; $i<=5; $i++) {
for($j=1; $j<=$i; $j++)
{
echo '*';
}
echo '<br>';
}
?>

??:

?? #3

? ??? i for ??? 5?? ?? ???? 5? ?????. j for ??? i ?? ?? *? ???? ? ?????. ???? ? ?? ?? ? 5?? ???? i? ? ?? ?? 1? ?? j ??? ? 5?? ?????. ???? ? 2? ?? j ??? ? 4?? ????, ?? ? 3? ?? j ??? 3?? ?????. i? ??? 5?? ?? ???? ??? ??? ?????.

??:

<?php
//example to demonstrate star pattern-3
for($i=1; $i<=5; $i++) {
for($j=5; $j>=$i; $j--)
{
echo '*';
}
echo '<br>';
}
?>

??:

?? #4

? ???? ? ??? ? ?? 5??? I for ?? ?? 5? ?????. ?? ? ???? j for ??? ???? ??? ???? ??? k for ??? ??? ????. ?*? ???? ? ?????.

??:

<?php
//example to demonstrate star pattern-4
for($i=1; $i<=5; $i++) {
for($j=4; $j>=$i; $j--) ?//loop to print spaces
{
echo '  ';
}
for($k=1; $k<=$i; $k++) ?//loop to print stars
{
echo '*';
}
echo '<br>';
}
?>

??:

?? #5

? ???? 3?? ??? ???????. ??? ? ?? ?????, ? ??? ?? ???, ? ??? ?? ??? ???????. ??? ? ??? ?? i ?? ?? ?????.

??:

<?php
//example to demonstrate star pattern-5
for($i=1; $i<=6; $i++) {
for($j=1; $j<=$i; $j++) //loop to print spaces
{
echo '  ';
}
for($k=5; $k>=$i; $k--) //loop to print stars
{
echo '*';
}
echo '<br>';
}
?>

??:

Example #6

In this example, there is a combination of two stars patterns upper triangle and lower triangle. These triangles are already explained in the previous examples and for this, we use three loops, one for the number of rows, second for the printing of spaces and third for the printing of stars and this loop is repeated again with different initial values of i and j along with different conditions for the next half of the triangle pattern.

Code:

<?php
//example to demonstrate star pattern-5
// this loop prints the upper half of the star pattern
for($i=1; $i<=5; $i++) {
for($j=1; $j<=$i; $j++) //loop to print spaces
{
echo '*';
}
echo '<br>';
}
// this loop prints the lower half of the pattern
for($i=1; $i<=5; $i++) {
for($j=4; $j>=$i; $j--) //loop to print stars
{
echo '*';
}
echo '<br>';
}
?>

Output:

Conclusion

In this article, star patterns in PHP are explained. We have seen different forms of star patterns. These patterns are with an explanation of how the condition works, how the looping works to print the stars as desired.

? ??? PHP? ? ??? ?? ?????. ??? ??? PHP ??? ????? ?? ?? ??? ?????!