PHP |想象一下 queryFormats()函数
Imagick::queryFormats()函数是PHP中的一个内置函数，用于获取 Imagick 支持的格式。
句法：
array Imagick::queryFormats( string $pattern = "*" )参数：此函数接受单个参数$pattern ，该参数保存要与格式匹配的模式。
返回值：此函数返回一个包含 Imagick 支持的格式的数组。
异常：此函数在出错时抛出 ImagickException。
下面给出的程序说明了PHP中的Imagick::queryFormats()函数：
方案一：
queryFormats('*');
print("".print_r($formats, true)."
");
?>
输出：
Array
(
[0] => 3FR
[1] => AAI
[2] => AI
[3] => ART
[4] => ARW
[5] => AVI
[6] => AVS
[7] => BGR
[8] => BGRA
[9] => BGRO
[10] => BIE
[11] => BMP
[12] => BMP2
[13] => BMP3
[14] => BRF
[15] => CAL
[16] => CALS
[17] => CANVAS
[18] => CAPTION
[19] => CIN
[20] => CIP
[21] => CLIP
[22] => CMYK
[23] => CMYKA
[24] => CR2
[25] => CRW
[26] => CUR
[27] => CUT
[28] => DATA
[29] => DCM
[30] => DCR
[31] => DCX
[32] => DDS
[33] => DFONT
[34] => DJVU
[35] => DNG
[36] => DOT
[37] => DPX
[38] => DXT1
[39] => DXT5
[40] => EPDF
[41] => EPI
[42] => EPS
[43] => EPS2
[44] => EPS3
[45] => EPSF
[46] => EPSI
[47] => EPT
[48] => EPT2
[49] => EPT3
[50] => ERF
[51] => EXR
[52] => FAX
[53] => FILE
[54] => FITS
[55] => FRACTAL
[56] => FTP
[57] => FTS
[58] => G3
[59] => G4
[60] => GIF
[61] => GIF87
[62] => GRADIENT
[63] => GRAY
[64] => GROUP4
[65] => GV
[66] => H
[67] => HALD
[68] => HDR
[69] => HISTOGRAM
[70] => HRZ
[71] => HTM
[72] => HTML
[73] => HTTP
[74] => HTTPS
[75] => ICB
[76] => ICO
[77] => ICON
[78] => IIQ
[79] => INFO
[80] => INLINE
[81] => IPL
[82] => ISOBRL
[83] => ISOBRL6
[84] => JBG
[85] => JBIG
[86] => JNG
[87] => JNX
[88] => JPE
[89] => JPEG
[90] => JPG
[91] => JPS
[92] => JSON
[93] => K25
[94] => KDC
[95] => LABEL
[96] => M2V
[97] => M4V
[98] => MAC
[99] => MAGICK
[100] => MAP
[101] => MASK
[102] => MAT
[103] => MATTE
[104] => MEF
[105] => MIFF
[106] => MKV
[107] => MNG
[108] => MONO
[109] => MOV
[110] => MP4
[111] => MPC
[112] => MPEG
[113] => MPG
[114] => MRW
[115] => MSL
[116] => MSVG
[117] => MTV
[118] => MVG
[119] => NEF
[120] => NRW
[121] => NULL
[122] => ORF
[123] => OTB
[124] => OTF
[125] => PAL
[126] => PALM
[127] => PAM
[128] => PANGO
[129] => PATTERN
[130] => PBM
[131] => PCD
[132] => PCDS
[133] => PCL
[134] => PCT
[135] => PCX
[136] => PDB
[137] => PDF
[138] => PDFA
[139] => PEF
[140] => PES
[141] => PFA
[142] => PFB
[143] => PFM
[144] => PGM
[145] => PICON
[146] => PICT
[147] => PIX
[148] => PJPEG
[149] => PLASMA
[150] => PNG
[151] => PNG00
[152] => PNG24
[153] => PNG32
[154] => PNG48
[155] => PNG64
[156] => PNG8
[157] => PNM
[158] => PPM
[159] => PREVIEW
[160] => PS
[161] => PS2
[162] => PS3
[163] => PSB
[164] => PSD
[165] => PTIF
[166] => PWP
[167] => RADIAL-GRADIENT
[168] => RAF
[169] => RAS
[170] => RAW
[171] => RGB
[172] => RGBA
[173] => RGBO
[174] => RGF
[175] => RLA
[176] => RLE
[177] => RMF
[178] => RW2
[179] => SCR
[180] => SCT
[181] => SFW
[182] => SGI
[183] => SHTML
[184] => SIX
[185] => SIXEL
[186] => SPARSE-COLOR
[187] => SR2
[188] => SRF
[189] => STEGANO
[190] => SUN
[191] => SVG
[192] => SVGZ
[193] => TEXT
[194] => TGA
[195] => THUMBNAIL
[196] => TIFF
[197] => TIFF64
[198] => TILE
[199] => TIM
[200] => TTC
[201] => TTF
[202] => TXT
[203] => UBRL
[204] => UBRL6
[205] => UIL
[206] => UYVY
[207] => VDA
[208] => VICAR
[209] => VID
[210] => VIFF
[211] => VIPS
[212] => VST
[213] => WBMP
[214] => WMF
[215] => WMV
[216] => WMZ
[217] => WPG
[218] => X
[219] => X3F
[220] => XBM
[221] => XC
[222] => XCF
[223] => XPM
[224] => XPS
[225] => XV
[226] => XWD
[227] => YCbCr
[228] => YCbCrA
[229] => YUV
)方案二：
queryFormats('PNG*');
print("".print_r($formats, true)."
");
?>
输出：
Array
(
[0] => PNG
[1] => PNG00
[2] => PNG24
[3] => PNG32
[4] => PNG48
[5] => PNG64
[6] => PNG8
)参考： https://www. PHP.net/manual/en/imagick.queryformats。 PHP