<code><span><span><?php</span> header(<span>"Content-type:text/html;charset=utf-8"</span>); <span>echo</span><span>"第一个"</span>; <span>echo</span><span>"<br/>"</span>; <span>$num</span>=<span>14</span>; <span>for</span> (<span>$i</span>=<span>1</span>; <span>$i</span> <= <span>$num</span>; <span>$i</span>++) { <span>for</span> (<span>$k</span>=<span>0</span>; <span>$k</span> <= <span>$num</span> - <span>$i</span>; <span>$k</span>++) { <span>echo</span><span>' '</span>; } <span>for</span> (<span>$j</span>=<span>1</span>; <span>$j</span> <= <span>$i</span>*<span>2</span>-<span>1</span>; <span>$j</span>++) { <span>echo</span><span>' *'</span>; } <span>echo</span><span>'<br/>'</span>; } <span>for</span> (<span>$i</span>=<span>$num</span>-<span>1</span>; <span>$i</span> >= <span>1</span>; <span>$i</span>--) { <span>for</span> (<span>$k</span>=<span>$num</span> - <span>$i</span>; <span>$k</span>>=<span>0</span> ; <span>$k</span>--) { <span>echo</span><span>' '</span>; } <span>for</span> (<span>$j</span>=<span>$i</span> *<span>2</span> -<span>1</span>; <span>$j</span> >= <span>1</span>; <span>$j</span> --) { <span>echo</span><span>' *'</span>; } <span>echo</span><span>'<br/>'</span>; } <span>echo</span><span>"<hr/>"</span>; <span>echo</span><span>"第二个"</span>; <span>echo</span><span>"<br/>"</span>; <span>for</span> (<span>$i</span>=<span>1</span>; <span>$i</span> <= <span>$num</span>; <span>$i</span>++) { <span>for</span> (<span>$k</span>=<span>0</span>; <span>$k</span> <= <span>$num</span> - <span>$i</span>; <span>$k</span>++) { <span>echo</span><span>' '</span>; } <span>for</span> (<span>$j</span>=<span>1</span>; <span>$j</span> <= <span>$i</span>*<span>2</span>-<span>1</span>; <span>$j</span>++) { <span>if</span> (<span>$j</span> == <span>1</span> || <span>$j</span> == <span>$i</span> *<span>2</span>-<span>2</span> ) { <span>echo</span><span>' *'</span>; } <span>echo</span><span>' -'</span>; } <span>echo</span><span>'<br/>'</span>; } <span>for</span> (<span>$i</span>=<span>$num</span>-<span>1</span>; <span>$i</span> >= <span>1</span>; <span>$i</span>--) { <span>for</span> (<span>$k</span>=<span>$num</span> - <span>$i</span>; <span>$k</span>>=<span>0</span> ; <span>$k</span>--) { <span>echo</span><span>' '</span>; } <span>for</span> (<span>$j</span>=<span>$i</span> *<span>2</span> ; <span>$j</span> >= <span>1</span>; <span>$j</span> --) { <span>if</span> (<span>$j</span> == <span>1</span> || <span>$j</span> == <span>$i</span> *<span>2</span>-<span>1</span> ) { <span>echo</span><span>'* '</span>; } <span>echo</span><span>' -'</span>; } <span>echo</span><span>'<br/>'</span>; } <span>echo</span><span>"<hr/>"</span>; <span>?></span></code>
The above has introduced the PHP output diamond (1), including aspects of the content. I hope it will be helpful to friends who are interested in PHP tutorials.