iptcembed

Function name: iptcembed()

Function description: The iptcembed() function embeds IPTC data into a JPEG image.

usage:

 string iptcembed ( string $iptcdata , string $jpeg_file_name [, int $spool ] )

parameter:

• iptcdata: A string containing IPTC data.
• jpeg_file_name: The name of the JPEG image file to be embedded in IPTC data.
• spool (optional): If set to a non-zero value, the function returns a string containing IPTC data instead of embedding it directly into the image file.

Return value: If IPTC data is successfully embedded, the JPEG image string after the embedded data is returned. If it fails, false is returned.

Example:

 // 创建一个包含IPTC数据的字符串$iptcdata = ''; $iptcdata .= "\x1C\x02"; // 开始IPTC数据块$iptcdata .= "\x1C\x02\x05\x1B"; // 标题$iptcdata .= 'PHP IPTC数据示例'; $iptcdata .= "\x1C\x02\x05\x22"; // 版权$iptcdata .= 'Copyright ? 2021'; $iptcdata .= "\x1C\x02"; // 结束IPTC数据块// 嵌入IPTC数据到JPEG图像$jpeg_file_name = 'example.jpg'; $embedded_image = iptcembed($iptcdata, $jpeg_file_name); if ($embedded_image !== false) { // 保存嵌入IPTC数据后的JPEG图像file_put_contents('example_embedded.jpg', $embedded_image); echo 'IPTC数据已成功嵌入到JPEG图像中。'; } else { echo '无法嵌入IPTC数据到JPEG图像。'; }

The above example creates a string containing IPTC data and embeds it into a JPEG image named example.jpg using the iptcembed() function. If the embedding is successful, the image after the embedding data is saved is example_embedded.jpg . If the embed fails, an error message will be output.