I have installed Imagick on Ubuntu 12.04 but still i get
Class 'Imagick' not found
When I check through terminal
php -m
I get
[PHP Modules] bcmath bz2 calendar Core ctype date dba dom ereg exif fileinfo filter ftp gettext hash iconv imagick json libxml mbstring mhash openssl pcntl pcre PDO Phar posix readline Reflection session shmop SimpleXML soap sockets SPL standard sysvmsg sysvsem sysvshm tokenizer wddx xml xmlreader xmlwriter zip zlib [Zend Modules] but when i check loaded extension through PHP script
get_loaded_extensions()
I am not getting imagick
Array ( [0] => Core [1] => date [2] => ereg [3] => libxml [4] => openssl [5] => pcre [6] => sqlite3 [7] => zlib [8] => bcmath [9] => bz2 [10] => calendar [11] => ctype [12] => curl [13] => dba [14] => dom [15] => hash [16] => fileinfo [17] => filter [18] => ftp [19] => gd [20] => gettext [21] => SPL [22] => iconv [23] => session [24] => intl [25] => json [26] => ldap [27] => mbstring [28] => mcrypt [29] => mssql [30] => standard [31] => mysqlnd [32] => mysqli [33] => mysql [34] => PDO [35] => pdo_mysql [36] => pdo_pgsql [37] => pdo_sqlite [38] => Phar [39] => posix [40] => Reflection [41] => imap [42] => shmop [43] => SimpleXML [44] => soap [45] => sockets [46] => exif [47] => sybase_ct [48] => sysvsem [49] => sysvshm [50] => tokenizer [51] => wddx [52] => xml [53] => xmlreader [54] => xmlwriter [55] => xsl [56] => zip [57] => apache2handler [58] => mhash ) php -i displays
imagick module => enabled imagick module version => 3.2.0RC1 imagick classes => Imagick, ImagickDraw, ImagickPixel, ImagickPixelIterator ImageMagick version => ImageMagick 6.6.9-7 2012-08-17 Q16 http://www.imagemagick.org ImageMagick copyright => Copyright (C) 1999-2011 ImageMagick Studio LLC ImageMagick release date => 2012-08-17 ImageMagick number of supported formats: => 206 ImageMagick supported formats => 3FR, A, AAI, AI, ART, ARW, AVI, AVS, B, BGR, BGRA, BMP, BMP2, BMP3, BRF, C, CAL, CALS, CANVAS, CAPTION, CIN, CIP, CLIP, CMYK, CMYKA, CR2, CRW, CUR, CUT, DCM, DCR, DCX, DDS, DFONT, DJVU, DNG, DOT, DPX, EPDF, EPI, EPS, EPS2, EPS3, EPSF, EPSI, EPT, EPT2, EPT3, ERF, EXR, FAX, FITS, FRACTAL, FTS, G, G3, GIF, GIF87, GRADIENT, GRAY, GROUP4, HALD, HDR, HISTOGRAM, HRZ, HTM, HTML, ICB, ICO, ICON, INFO, INLINE, IPL, ISOBRL, J2C, JNG, JP2, JPC, JPEG, JPG, JPX, K, K25, KDC, LABEL, M, M2V, M4V, MAC, MAP, MAT, MATTE, MIFF, MNG, MONO, MOV, MP4, MPC, MPEG, MPG, MRW, MSL, MSVG, MTV, MVG, NEF, NULL, O, ORF, OTB, OTF, PAL, PALM, PAM, PATTERN, PBM, PCD, PCDS, PCL, PCT, PCX, PDB, PDF, PDFA, PEF, PES, PFA, PFB, PFM, PGM, PGX, PICON, PICT, PIX, PJPEG, PLASMA, PNG, PNG24, PNG32, PNG8, PNM, PPM, PREVIEW, PS, PS2, PS3, PSB, PSD, PTIF, PWP, R, RADIAL-GRADIENT, RAF, RAS, RGB, RGBA, RGBO, RLA, RLE, SCR, SCT, SFW, SGI, SHTML, SR2, SRF, STEGANO, SUN, SVG, SVGZ, TEXT, TGA, THUMBNAIL, TIFF, TIFF64, TILE, TIM, TTC, TTF, TXT, UBRL, UIL, UYVY, VDA, VICAR, VID, VIFF, VST, WBMP, WMF, WMV, WMZ, WPG, X, X3F, XBM, XC, XCF, XPM, XPS, XV, XWD, Y, YCbCr, YCbCrA, YUV Directive => Local Value => Master Value imagick.locale_fix => 0 => 0 imagick.progress_monitor => 0 => 0 getting this error in PHP log
PHP Warning: PHP Startup: imagick: Unable to initialize module Module compiled with module API=20090626 PHP compiled with module API=20121212 
php.ini