循环中的php声明？ $图像

Question

im resizing an image using a $image. how can I make this:

    scaleImageFile(
        "gif/SB-99JCX-000021.gif",
        500,
        500,
        "gifanim/output/SB-99JCX-000021-500x500.gif",
        4
    );

into this? and make it work..

$image = is in a loop.. counting each image. so SB-99JCX-000021.gif, 22.gif, 23.gif... and so on

        scaleImageFile(
            "gif/$image",
            500,
            500,
            "gifanim/output/$image-500x500.gif",
            4
        );

more of the code to give you an idea:

foreach ($sortedImages as $image) {


        scaleImageFile(
            "gif/SB-99JCX-000021.gif",
            500,
            500,
            "gifanim/output/SB-99JCX-000021-500x500.gif",
            4
        );

Answer 1

Just substitute the variable into the filenames:

foreach ($sortedImages as $image) {

    # Get the name of the image, stripped from image folder path and file type extension
    $name = substr($image,strlen($imagefolder),strpos($image, '.')-strlen($imagefolder));

    scaleImageFile(
        "gif/$name.gif",
        500,
        500,
        "gifanim/output/$name-500x500.gif",
        4
    );
}

You might also find the basename function to be useful, in place of your substr code. It can remove the directory prefix and a known extension. So you could write:

$name = basename($image, '.gif');