php \u8ba1\u7b97\u56fe\u7247\u50cf\u7d20\u4f7f\u7528\u5185\u5b58\u5927\u5c0f
\n\u6709\u65f6\u76f4\u63a5\u4f7f\u7528imagecreatefromjpeg \u751f\u6210\u65b0\u7684\u56fe\u7247\u4f1a\u62a5\u9519,\u4f8b\u5982:<\/p>\n
<?php imagecreatefromjpeg('1.jpg');\/\/\u56fe\u7247\u7684\u5c3a\u5bf8\u662f4962 X 7019 \u5927\u5c0f0.99M\r\n<\/pre>\n\u5c31\u4f1a\u62a5\u9519<\/p>\n
Fatal error: Allowed memory size of 134217728 bytes exhausted (tried to allocate 19848 bytes) in D:\\phpStudy\\WWW\\api.php on line 2\r\n<\/pre>\n\u7136\u540e\u5224\u65ad\u662f\u5426\u8d85\u5185\u5b58,\u8005\u89e3\u51b3\u95ee\u9898<\/p>\n
\r\nfunction is_image_pixel($file_path){\r\n$img = getimagesize($file_path);\r\n$max_width=$img_width=$img[0];\r\n$max_height=$img_height=$img[1];\r\n$memory =(int)ini_get('memory_limit');\r\n$scale = min(\r\n$max_width \/ $img_width,\r\n$max_height \/ $img_height\r\n);\r\n$new_width = $img_width * $scale;\/\/\u8ba1\u7b97\u8981\u7f29\u5c0f\u7684\u5bbd\u503c\r\n$new_height = $img_height * $scale;\/\/\u5c31\u7b97\u8981\u7f29\u5c0f\u7684\u9ad8\u5ea6\u503c\r\n$memimg = ($new_width*$new_height*$img['channels'] + $img[0]*$img[1]*$img['channels']) * 1.7\/ 1024 \/ 1024 ;\r\n\/\/echo $memimg;exit;\r\nif($memory > $memimg){ \/\/\u5224\u65ad\u662f\u5426\u8d85\u8fc7php.ini \u8bbe\u5b9a\u7684\u5185\u5b58\u503c\r\nreturn true;\r\n}else{\r\nreturn false;\r\n}\r\n}\r\n$file_path='1.jpg';\r\nif(is_image_pixel($file_path)){\/\/\u5224\u65ad\u662f\u5426\u8d85\u5185\u5b58,\u4e0d\u8d85\u5219\u521b\u5efa\u65b0\u56fe\u7247\r\n imagecreatefromjpeg($file_path);\r\n}\r\n<\/pre>\n\u8fd9\u7f51\u7ad9\u53ef\u4ee5\u770b\u56fe\u7247\u5185\u5b58\u8981\u4f7f\u7528\u7684\u60c5\u51b5:http:\/\/www.dotsamazing.com\/en\/labs\/phpmemorylimit<\/p>\n","protected":false},"excerpt":{"rendered":"
php \u8ba1\u7b97\u56fe\u7247\u50cf\u7d20\u4f7f\u7528\u5185\u5b58\u5927\u5c0f \u6709\u65f6\u76f4\u63a5\u4f7f\u7528imagecreatefromjpeg \u751f\u6210\u65b0\u7684\u56fe\u7247\u4f1a\u62a5\u9519,\u4f8b\u5982 […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[86,87,88,89],"class_list":{"0":"post-173","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"hentry","6":"category-php","7":"tag-imagecreatefromjpeg-","8":"tag-php-","9":"tag-php","11":"clear"},"_links":{"self":[{"href":"http:\/\/www.shenmdyw.com\/index.php\/wp-json\/wp\/v2\/posts\/173","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/www.shenmdyw.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.shenmdyw.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.shenmdyw.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.shenmdyw.com\/index.php\/wp-json\/wp\/v2\/comments?post=173"}],"version-history":[{"count":7,"href":"http:\/\/www.shenmdyw.com\/index.php\/wp-json\/wp\/v2\/posts\/173\/revisions"}],"predecessor-version":[{"id":180,"href":"http:\/\/www.shenmdyw.com\/index.php\/wp-json\/wp\/v2\/posts\/173\/revisions\/180"}],"wp:attachment":[{"href":"http:\/\/www.shenmdyw.com\/index.php\/wp-json\/wp\/v2\/media?parent=173"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.shenmdyw.com\/index.php\/wp-json\/wp\/v2\/categories?post=173"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.shenmdyw.com\/index.php\/wp-json\/wp\/v2\/tags?post=173"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}