Debug rau siab heev PHP
Txheej txheem cej luam: Debugging yog ib feem tseem ceeb thiab tseem ceeb ib sab ntawm txoj kev loj hlob software. Yog nrhiav tau kab thiab uas tsis nyob rau hauv ib daim ntawv thov lub tsho ua hauj lwm rau lub developers. Li ntawd, Muab cov mechanism no yuav tsum tau txais yuav ua tus txheej txheem yooj yim. Tsis muaj raws li cov txheej txheem debugging, Software bugs thiab yuam kev yuav tsis raug kuaj yooj yim thiab npaum. Raws li ib tug PHP programming qauv, Peb yuav tsum paub txog tag nrho cov cuab yeej muaj rau debugging thiab eliminating malfunctioning components ntawm peb software lawv. Nyob rau hauv tsab xov xwm no peb yuav mloog zoo rau tus tub ntxhais PHP debugging. Tus tub ntxhais mechanism li qub txheej txheem siv cov kev pab cuam los yuam kev thiab discrepancies. Tus out-put sau los ntawm tsab ntawv tiav thiab tso tawm rau thaum xaus rau tsab ntawv.
Taw qhia: PHP stands rau PHP- Hyooj yim Ptxheeb ze. Feem ntau thaum peb ua hauj lwm rau kev software txoj kev loj hlob, peb yuav tsum ua raws li Snruab nrab Development Lyog hais tias Cvoj voog, uas hu ua SDLC (Kev loj hlob software Lub neej cycle). Nyob rau hauv txoj kev SDLC muaj ntau hom kauj ruam pib nthuav thiab ib leeg yog debugging thiab kuaj txheej txheem. Cov txheej txheem debugging yog ib feem tseem ceeb ntawm kev software kev ua hauj lwm.
Define yug thiab debug: Thaum peb tsim ib qhov kev software, Nws muaj ntau hom kab mob yoov, hawb pob los yog tsis ntshai. Cov kev yuam kev no yog feem ntau hu ua Bug. Ntawm qhov tod tes debugging yog txoj kev khij, software yuam kev los yog yoov tshaj cum yuav pub software cov kev pab cuam kom zoo.
Teeb meem dav shooting cov tswv yim:
Basic hais txog lub dag zog debugging dag zog yog guessing seb yog dab tsi tsis ncaj ncees lawm thiab ces kho nws. Nws tsis txawm peb yog analyzing ib PHP qhov kev pab cuam, xovtooj, circuit Court electronics, los sis ib qhov kev pab cuam software – tej txhooj cai hais txog. Li ntawd, peb yuav tsum tau dais cov tswv yim nyob rau hauv siab li peb sim kom paub seb peb ails peb software.
- Hloov ib yam zuj zus
- Sim los tiv thaiv qhov teeb meem
- Yooj yim, ces tsim
- Ntsuam xyuas cov cuab kev
- Ntaub ntawv peb tov
- Tom qab kho, tawm tsam
Siab heev debugging PHP los ntawm kev ntsuam xyuas yooj yim:
Cov kev txheeb xyuas hauv qab no tias koj yeej paub zoo txog cov ntsiab lus ntawm lub tswvyim ntawm kev kuaj ntawd thiab PHP qhov web site. Nws yog ib daim ntawv qhia rau ib tug neeg siv tshiab nrog txoj kev kuaj no yooj yim. Yog hais tias koj tshiab los kuaj cov txheej txheem kuj yuav pab koj ua raws li cov kauj ruam.
Kev kuaj ceev ceev: Ib unit kuaj los kuaj yog ib qhov nyiam tuaj software kuaj cov cuab yeej hauv lub zej zos txoj kev loj hlob. Nyob rau hauv cov ntsiab lus teb ntawm kev loj hlob, kev ntsuam xyuas code (yuav tsum tau mus kuaj) Tshwm sim ntxiv rau daim ntawv thov kev pab li ob leeg yeej sau ib txhij. Nyob rau hauv tsab xov xwm no yooj yim aims kom tiav PHP tsim tawm thiab nws hu ua “yooj yim” vim hais tias nws yuav tsum yooj yim rau kev xyaum thiab kis. Ib qho piv txwv yuav qhia tau tias ib tug neeg siv ntawv rau ib database tom qab kos npe los ntawm qhov web site.
Tam sim no peb yog kuaj ib daim ntawv yooj yim logging kawm ntawv hu ua Logging/logging.php. Peb yuav pib tsim ib tsab ntawv xeem uas peb yuav hu tuaj kuaj/logging_test.php thiab colonize nws raws li ua raws li.
Listing1: Qauv uas qhia cov ntaub ntawv logging
[CHAWS]
<?php
require_once('yooj yim/autorun.php);
require_once('.. /classes/log.php);
Hoob Kawm Loggingtes extends TestCase {
}
?>
[/CHAWS]
Ntawm no yog".yooj yim” yog muaj los yog nyob rau hauv txoj kev. Peb yuav tau hloov no qhov chaw nyob ntawm qhov chaw uas peb xaiv unpack tus tuam. Cov ntawm no lub autorun.php cov ntaub ntawv muaj xws li cov SimpleTest mus los thiab kuj sau peb xeem. Tus TestOfLogging Yog peb cov ntaub ntawv mus thawj thiab nws tseem tab tom tas. Ntawm no ib lub rooj kuaj yog hoob kawm uas extends ib lub SimpleTest hoob kawm los luj thiab peb yuav muaj kom ntau rau hauv no li peb xav. Tam sim no peb muaj ntsuam nplua uas cav chav kawm ntawv nyob.
Rau peb txoj kev xeem thawj zaug, peb yuav tau txais lub cav hoob uas yuav siv cov ntaub ntawv npe sau rau hauv cov constructor, thiab muab nws rau hauv lub tais ceev tseg ib ntus.
Listing2: Qauv uas qhia cov ntaub ntawv kuaj thiab cav
[CHAWS]
<?php
require_once('yooj yim/autorun.php);
require_once(' yog li... /Classes/logging.php');
Hoob Kawm Loggingtes extends TestCase {
checkFirstMessage muaj nuj nqi() {
@unlink(' / temp/test.log');
$txiav = cav tshiab(' / temp/test.log');
//Qhov no yog ib pointer uas nyob kwv incurrent
$no->assertFalse (file_exists(' / temp/test.log'));
$logging->xov ("yuav tsum sau li no rau ib");
$no->assertTrue (file_exists(' / temp/test.log'));
}
}
?>
[/CHAWS]
Thaum peb khiav ib rooj plaub no nws yuav nrhiav txhua txoj kev uas pib ntawm txoj hlua “ntsuam xyuas” thiab coj txoj kev ntawd.
Tus taw tes rau nco ntsoov hais tias yog ib lub npe zoo li checkFirstMessage ntev heev (). Qhov no yog ntsuas li ib style zoo thiab ua rau cov mus kuaj zis dua tshwmsim. Peb yuav nquag sib ntxiv ib txoj kev kuaj no kuaj li tab sis yog rau tom qab. Assertions li kuaj kev txhais lus rau lub moj kuaj khaum uas qhia txog cov instantaneously. Tseem ceeb heev no instantaneous teb. Cov nqe lus print tau tso saib cov ntaub ntawv kawm debugging sai tom ntej no rau qhov txhawj xeeb assertion.
Saib peb yuav tsum tau khiav kev ntsuam xyuas kuaj. Tsis muaj lwm yam code puas tsim nyog – peb yuav cia li yuav qhib cov cov nplooj ntawv uas peb browser.
Rau qhov uas qhia cov zaub zoo li no…
Txiav uas txoj kev kuaj:
Qhov no yog ib sab ntawm tus kuaj los ntawm txoj kev hauv qab no uas. Ntawm no peb tau muab ib qho piv txwv thaum lawv tsis.
Yog hais tias tsis muab ces yuav ua rau koj zoo li no.
1/1 kuaj mob tiav. 1 kis thiab 1 tsis.
Yog hais tias nws kis tau ces yuav ua rau koj zoo li no.
1/1 kuaj mob tiav. 2 kis thiab 0 tsis.
Qhov no, NTSUAB thiab LIAB xim tseem ntawd hais rau tav thiab tsis ua hauj lwm.
Lub ntsiab lus yuam kev tuag:
Thaum twg ib qho kev ua yuam kev raug, npaj txhij txog ntawm qhov kev pab txiav txoj tsim. Qhov kev pab yuav raug tso povtseg xws li nws tus kheej los yog lub kaw lus operating raws li ib tug kos tuag. Nyob rau hauv rooj plaub ua ntej, qhov kev pab cuam muaj cov cai uas ua catches qhov yuam kev thiab nws rov qab mus rau lawv operating rov los hu kom ib qhov operating system yuav muaj cai tau cov kev pab cuam. Yeej txoj kev uas feem ntau hu ua yuam kev tuag.
Ib qho piv txwv ntawm kev ua yuam kev mas kawg tuag xwb yog muaj li nram qab no.
Yuam kev tuag: Ua tsis tau tejyam lus qhib tau '... /Classes/logging.php’ (include_path =”) nyob rau hauv /home/bcei/projects/lastcraft/article_tests/Log/tests/logging_test.php ntawm kab 7
Nws txhais tau tias peb cov uas ploj lawm rau classes/Logging.php cov ntaub ntawv uas yuav zoo li no.
Listing3: Qauv qhia logging kawm
[CHAWS]
<?php
hoob kawm logging
{
ua logging($file_path)
{
....
}
cov lus muaj nuj nqi()
{
ncha "Txais tos kom txog ua ntej PHP... los";
}
}
?>
[/CHAWS]
Qhov no hu ua Kev kuaj uas tau tsav (TDD) thiab nws yog ib txoj kev loj hlob pov thawj vib this.
Lub tsev no suites:
Nyob rau hauv daim ntawv thov lub neej tiag no tsis tau khiav ib tug ntaub ntawv tshuaj ntsuam. Tab sis, feem ntau peb taug ib txoj kev rau cov pab pawg neeg yuav tsum tau mus kuaj zaum rau hauv ib tsab ntawv mus. Tam sim no peb yuav khiav tau tsab ntawv kuaj saib cov ntaub ntawv. Qhov kom zoo dua yog tias peb tsis tau tso ib tug neeg kuaj tus neeg mob uas heev tsho thiab sij hawm haus mas. Thiab tib lub sijhawm yog peb tsis tas txhua txhia xeem, peb yuav yooj yim muab luag tej tswvyim thiab khiav tsab ntawv.
Peb thawj kauj ruam yog yuav sau ib daim ntawv tshiab hu ua tests/cei.php thiab ntxig lub chaws hauv qab no ces.
Listing4: Qauv qhia xeem tsab ntawv
[CHAWS]
<?php
require_once('yooj yim/autorun.php);
hoob cei extends bcei
{
alltest muaj nuj nqi()
{
$no->TestSuite('Txhua xeem ntawv..');
$no->addFile('log_test.php');
}
}
?>
[/CHAWS]
Xaus: Debugging yog ib qhov tseem ceeb tshaj dab rau tej software daim ntawv thov kev. Nws tseem ceeb heev uas yuav tau kuaj tej ntaub ntawv ua ntej nws mus txiag. Vim txiag yog ib sab ntawm tej software tsim lub neej nws zaum kawg. Tiam sis nws tseem muaj tseeb tias debugging yog ib yuav tsum thaum txoj kev loj hlob thiab kev soj ntsuam ntawm yog ib qhov twg. Nyob rau cov tshooj no peb tau tham txog ntau yam cuab yeej thiab cov txheej txheem raws siab heev PHP debugging thiab txoj kev xeem.
