Question

我有一系列alt标签：

$array_alt=array("hii,
            "Best",
            "abc",
            //"board certified",
            "xyz",
            "hello",
            "new"
            )

现在我想要的是将这些alt标签动态添加到 img src ，即图片1 alt 标记应为＆＃34; hii＆＃34; ，其余部分相同。

这就是如何通过文件夹动态调用图像，所有图像都显示在滑块中：

$images = scandir(images/all_images); // get path 
            sort($images,1); // 1 is to sort images numerically

            foreach($images as $img)
                { 
                    if($img === '.' || $img === '..')
                    {
                        continue;
                    }   
                    // check extensions as we need only images
                    if ((preg_match('/.jpg/',$img))  ||  (preg_match('/.gif/',$img)) || (preg_match('/.tiff/',$img)) || (preg_match('/.png/',$img)) )
                    {               
                        list($width, $height, $type, $attr) = getimagesize($path.$img);

                        if(($width<$height) || ($height>500) )
                        {
                        ?>
                            <div class="item img-landscape"><img class="lazyOwl" alt="" data-src="<?php echo $path.$img; ?>" ></div>
                           <?php
                        }
                        else{
                        ?>
                            <div class="item"><img class="lazyOwl" alt="" data-src="<?php echo $path.$img; ?>" ></div>
                           <?php
                        }
                    }
                    else
                    {
                        continue;
                    }
                }

请有人帮助我。

我尝试过使用它，但似乎没有任何效果。

$images = scandir($img_path);
            sort($images,1); // 1 is to sort images numerically

            $i=0;
            foreach($images as $img)
                { 

                    echo $array_alt[$i]."<br>";
                    if($img === '.' || $img === '..')
                    {
                        continue;
                    }   
                    // check extensions as we need only images
                    if ((preg_match('/.jpg/',$img))  ||  (preg_match('/.gif/',$img)) || (preg_match('/.tiff/',$img)) || (preg_match('/.png/',$img)) )
                    {               
                        list($width, $height, $type, $attr) = getimagesize($path.$img);

                        if(($width<$height) || ($height>500) )
                        {
                        ?>
                            <div class="item img-landscape"><img class="lazyOwl" alt="<?php echo $array_alt[$i]?>" data-src="<?php echo $path.$img; ?>" ></div>
                           <?php
                        }
                        else{
                        ?>
                            <div class="item"><img class="lazyOwl" alt="<?php echo $array_alt[$i]?>" data-src="<?php echo $path.$img; ?>" ></div>
                           <?php
                        }
                    }
                    else
                    {
                        continue;
                    }
                   $i++;  
                }

提前致谢

Answer 1

首先你的声明是错的..

$array_alt=array("hii,
        "Best",
        "abc",
        //"board certified",
        "xyz",
        "hello",
        "new"
        )

将是

$array_alt=array("hii",
        "Best",
        "abc",
        //"board certified",
        "xyz",
        "hello",
        "new"
        )

Answer 2

修改了一下你的代码（在alts数组中"之后添加了遗漏"hii，检查$array_alt中是否存在密钥，简化扩展检查），它似乎对我有用：< / p>

<?php

$array_alt = array(
    "hii",
    "Best",
    "abc",
    "board certified",
    "xyz",
    "hello",
    "new"
);

$path = '/public_path/';
$images = scandir($img_path);
sort($images, SORT_NUMERIC); // SORT_NUMERIC == 1 is to sort images numerically

$allowedExtensions = array('jpg', 'gif', 'tiff', 'png');
$i = 0;
foreach ($images as $img) {
    if (isset($array_alt[$i])) {
        $alt = $array_alt[$i];
    } else {
        $alt = "default_alt_value";
    }
    echo $alt . "<br>";
    if ($img === '.' || $img === '..') {
        continue;
    }
// check extensions as we need only images
    if (!in_array(pathinfo($img, PATHINFO_EXTENSION), $allowedExtensions)) {
        continue;
    }

    list($width, $height, $type, $attr) = getimagesize($path . $img);

    if (($width < $height) || ($height > 500)) {
        ?>
        <div class="item img-landscape"><img class="lazyOwl" alt="<?php echo $alt ?>"
                                             data-src="<?php echo $path . $img; ?>"></div>
    <?php
    } else {
        ?>
        <div class="item"><img class="lazyOwl" alt="<?php echo $alt ?>"
                               data-src="<?php echo $path . $img; ?>"></div>
    <?php
    }
    $i++;
}
?>

Answer 3

$array_alt=array("hii",
        "Best",
        "abc",
        //"board certified",
        "xyz",
        "hello",
        "new"
        );

$img_path="images/slider";
$path=JURI::BASE().$img_path."/"; // url/path of the images
$images = scandir($img_path);
sort($images,1); // 1 is to sort images numerically

    $i=0;
    foreach($images as $img)
    { 
       if($img === '.' || $img === '..')
       {
           continue;
       }   
       // check extensions as we need only images
       if ((preg_match('/.jpg/',$img))  ||  (preg_match('/.gif/',$img)) || (preg_match('/.tiff/',$img)) || (preg_match('/.png/',$img)) )

                {               
                    list($width, $height, $type, $attr) = getimagesize($path.$img);

                    if(($width<$height) || ($height>500) )
                    {
                    ?>
                        <div class="item img-landscape"><img class="lazyOwl" alt="<?php echo $array_alt[$i]?>" data-src="<?php echo $path.$img; ?>" ></div>
                       <?php
                    }
                    else{
                    ?>
                        <div class="item"><img class="lazyOwl" alt="<?php echo $array_alt[$i]?>" data-src="<?php echo $path.$img; ?>" ></div>
                       <?php
                    }
                }
                else
                {
                    continue;
                }
               $i++;  
            }

动态合并img数组中的alt标签数组

3 个答案: