我有以下代码:
<?php
foreach($bb['slides'] as $b):
$url = "domain.com/" . $b->image . ";
echo($url);
endforeach;
?>
输出如下:domain.com/image1.jpg domain.com/image2.jpg domain.com/image3.jpg
我试图随机化输出的顺序。在foreach语句之前,我尝试使用shuffle($ bb)对数组进行洗牌;但那没用。任何帮助表示赞赏。
由于$ bb是一个数组数组,shuffle()不会随机化子数组,在嵌套数组上尝试shuffle
,如下所示:
shuffle($bb['slides']);
当你应该完成时,你可能会改组外部的$ bb数组:
shuffle($bb['slides']);
foreach($bb['slides'] as $b):
shuffle($array_name); // will shuffle array
http://www.php.net/manual/en/function.shuffle.php
也应该是foreach
for($array_name as $array_item) {
// do stuff
}
<?php
shuffle($bb['slides']);
foreach($bb['slides'] as $b) {
echo $url = "domain.com/" . $b->image . ";
}
?>
通过示例查看此博客的说明。
http://wamp6.com/php/str_shuffle-php/ Check for array shuffle
看起来你需要做shuffle( $bb['slides'] )
。
以随机顺序显示内容
<?php
$myContentList = array (
'One',
'Two',
'Three',
'Four'
);
shuffle ($myContentList);
foreach ($myContentList as $displayAtRandomOrder) {
echo '<div>' . $displayAtRandomOrder . '</div>';
}
?>
以随机顺序显示图像
<?php
$myImagesList = array (
'one.png',
'two.png',
'three.jpg',
'four.gif'
);
shuffle ($myImagesList);
foreach ($myImagesList as $displayImagesAtRandomOrder) {
echo '<img src="images/' . $displayImagesAtRandomOrder . '" width="200" height="40" border="0" />';
}
?>