ps_open_image

(PECL ps >= 1.1.0)

ps_open_image — Reads an image for later placement

说明

ps_open_image(
    resource $psdoc,
    string $type,
    string $source,
    string $data,
    int $lenght,
    int $width,
    int $height,
    int $components,
    int $bpc,
    string $params
): int

Reads an image which is already available in memory. The parameter source is currently not evaluated and assumed to be memory. The image data is a sequence of pixels starting in th upper left corner and ending in the lower right corner. Each pixel consists of components color components, and each component has bpc bits.

参数

psdoc: Resource identifier of the postscript file as returned by ps_new().
type: The type of the image. Possible values are png, jpeg, or eps.
source: Not used.
data: The image data.
length: The length of the image data.
width: The width of the image.
height: The height of the image.
components: The number of components for each pixel. This can be 1 (gray scale images), 3 (rgb images), or 4 (cmyk, rgba images).
bpc: Number of bits per component (quite often 8).
params

返回值

Returns identifier of image or zero in case of an error. The identifier is a positive number greater than 0.

参见

ps_open_image_file() - Opens image from file
ps_place_image() - Places image on the page
ps_close_image() - Closes image and frees memory

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官方地址：https://www.php.net/manual/en/function.ps-open-image.php

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ps_open_image

说明

参数

返回值

参见

User Contributed Notes