gdImageCopyMerge 2251 ext/gd/libgd/gd.c void gdImageCopyMerge (gdImagePtr dst, gdImagePtr src, int dstX, int dstY, int srcX, int srcY, int w, int h, int pct)
gdImageCopyMerge  223 main/php_compat.h #define gdImageCopyMerge php_gd_gdImageCopyMerge