Sort PHP Array With Two Values -

-

this question has answer here:

for example, have php array in format:

[ {"optionname":"math","optionid":"35741"}, {"optionname":"robotics","optionid":"80229"}, {"optionname":"fndbwoiaghoe","optionid":"1105065296"}, {"optionname":"iphewajgiewohfoidsahg","optionid":"1385274203"}, {"optionname":"wpeogagpoar","optionid":"1030886790"},    {"optionname":"genpwaighipwe","optionid":"1193090269"} ]

how can sort array value of "optionname" alphabetically?

thanks!

i assuming, due code example, have json-encoded array.

you want sort not on value on specific property of value. php can't know specific property want take account. have give php way know object comes in front of own function. can tell php use function sorting comparison using usort().

$arr = json_decode(' [     {"optionname":"math","optionid":"35741"},     {"optionname":"robotics","optionid":"80229"},     {"optionname":"fndbwoiaghoe","optionid":"1105065296"},     {"optionname":"iphewajgiewohfoidsahg","optionid":"1385274203"},     {"optionname":"wpeogagpoar","optionid":"1030886790"},        {"optionname":"genpwaighipwe","optionid":"1193090269"} ] ');  usort($arr, function ($obj1, $obj2) {     return strcasecmp($obj1->optionname, $obj2->optionname); });  $arr = json_encode($arr);

note code above compares optionname property case insensitive. if want php take case account, replace strcasecmp strcmp.

edit: if using php version older 5.3, anonymous functions (like 1 used second parameter usort() function above) not yet supported. version below should work then.

$arr = json_decode(' [     {"optionname":"math","optionid":"35741"},     {"optionname":"robotics","optionid":"80229"},     {"optionname":"fndbwoiaghoe","optionid":"1105065296"},     {"optionname":"iphewajgiewohfoidsahg","optionid":"1385274203"},     {"optionname":"wpeogagpoar","optionid":"1030886790"},        {"optionname":"genpwaighipwe","optionid":"1193090269"} ] ');  function compareobjects($obj1, $obj2) {     return strcasecmp($obj1->optionname, $obj2->optionname); } usort($arr, 'compareobjects');  $arr = json_encode($arr);

Comments

Post a Comment

Popular posts from this blog

css - Which browser returns the correct result for getBoundingClientRect of an SVG element? -

-
this svg contains rect overflows svg element: <svg id='svg' width='10' height='10'> <rect x='-10' y='-10' width='30' height='30'/> </svg> chrome 28 , opera 12 return getboundingclientrect() svg element width , height of 10. firefox 23 reports width , height of 30. correct? jsfiddle the relevant spec cssom , delegates svg spec if svg element not "have associated css layout box". haven't found definition of "having associated css layout box", correct result seem hinge on definition, getbbox returns 30x30 rect in browsers. this firefox bug fixed now, fix in firefox nightlies , should make through firefox 33 released on 14 october 2014. see bug 530985 details.
Read more

gcc - Calling fftR4() in c from assembly -

-
i trying asm fft implementation www.embeddedsignals.com work. running make gives error: undefined reference fftr4(short*, short*, int) at top of asm have .syntax unified .thumb .global fftr4 .type fftr4, %function and there #define's associate c functions arguments registers followed macros fftr4 function uses. after that, fftr4 called .thumb_func fftr4: stmfd sp!, {r4-r11, lr} mov tmp0, #0 // bit reversed counter mov tmp1, #0 .word 0xf3a2fa92 //rbit r3,r2 //rbit r,n lsl r,#3 and c code follows: void fftr4(short *y, short *x, int n); short x[512]; short y[512]; int i; void loop() { (i=0;i<512;i++) x[i]=0; (i=0;i<512;i=i+8) { x[i+0]=16384; x[i+2]=16384; x[i+4]=-16384; x[i+6]=-16384;} fftr4(y, x, 256); serialusb.println(y[128]); serialusb.println(y[129]); serialusb.println(y[384]); serialusb.println(y[385]); // expected results: //y[128]is 8191; y[129] -8190 y[...
Read more

.htaccess - Matching full URL in RewriteCond -

-
i'm trying block post access site (and return 403), except 2 ip's , 1 url ( http://mydomain.com/about-us/contact-us/ ). here's have: rewritecond %{request_method} post rewritecond %{remote_addr} !=1.2.3.4 rewritecond %{remote_addr} !=4.3.2.1 rewritecond %{request_uri} !^http://mydomain.com/about-us/contact-us/$ rewriterule ^ / [f] these rules allowing access ip properly, contact page still not accessible. i'm not sure i'm using request_uri correctly? i've tried variations relative urls rewritecond %{request_uri} !^/about-us/contact-us$ , rewritecond %{request_uri} !^/about-us/contact-us/$ without luck. what doing wrong please? it looks me rule on file name specific. if relax bit, should work. made few other esthetic tweaks. give try: rewritecond %{request_method} post rewritecond %{remote_addr} !^1.2.3.4 rewritecond %{remote_addr} !^4.3.2.1 rewritecond %{request_uri} !about-us/contact-us rewriterule ^ - [f]
Read more