PHP中的while 和do-while
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<pre><code>while语句
<?php
/* 示例 1 */
$i = 1;
while ($i <= 10) {
echo $i++;/* 在自增前（后自增）打印的值将会是 $i */
}
/* 示例 2 */
$i = 1;
while ($i <= 10):
print $i;
$i++;
endwhile;
?></code></pre>
<pre><code>goto跳出循环去做某事
<?php
for($i=0,$j=50; $i<100; $i++) {
while($j--) {
if($j==17) goto end;
}
}
echo "i = $i";
end:
echo 'j hit 17';
?></code></pre>
<p></p>
<pre><code>do_while去做某事情
<?php
do {
if ($i < 5) {
echo "i is not big enough";
break;
}
$i *= $factor;
if ($i < $minimum_limit) {
break;
}
echo "i is ok";
/* process i */
} while(0);
?></code></pre>
<p></p>
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