Timestamps pamusoro PHP: timestamp, uye kukarukureta nguva

Time kunokosha nguva dzose. Nzvimbo hainei nguva uye regai kuramba kuishandisa, kwete kuti handina kodzero upenyu, asi zvisiri munhu wenguva dzaishandiswa ano paIndaneti kupfuma.

PHP mabasa kushanda nguva

Pazuva PHP musi uye nguva hunomiririrwa yakatarwa mitambo, yakakwana ishande pasina kurambidzwa, uye mukana Ndokunyengetererai nguva uye musi kune rimwe nechimwe. The yokuvaka anongogona nguva chidhindo pakunyora (njanji) zviitiko uye achiita Masvomhu mazuva.

Hapana chikonzero kunyora tsika bumbiro kuti anodzora (pakuverenga) mazuva ari mwedzi, munogodorerei gore, zuva revhiki, zita mwedzi, uye nezvimwewo. Unogona kushanda rimwe basa uye kuvimba PHP zvachose kuti kukwanisa kushanda nezvechisarudzo ichi.

Pfungwa, mashandiro maviri (getTimeStamp, GetDate) zvakakwana kugadzirisa chero dambudziko pandaishanda musi uye / kana nguva. Asi asina mano yokuvaka anogona kushandisa mamwe mabasa.

Kukosha PHP timestamp - ane nhamba chitaridzi imwe mhando kuti ose wechipiri anowana zvitsva kusanganiswa zvinoreva (kukosha). Kare, nhamba iyi ndiyo nhamba mumasekonzi kubva pakati pousiku, January 1 1970 gore.

Objective chokwadi uye ukoshi Timestamp

In mapurogiramu, nguva dzose paiva misi zhinji nhangaruvazhe. Kufanana chero kwaye programmer anoyeuka zuva rake chirongwa chokutanga chaizvo, uye mhuri yuniksoidov anokudza kutanga yaitonga ake.

Panyaya iyi, pfungwa nokuda Implementation pamusoro nzira iri zvakawanda nguva. Shandisa zvinogona chete kusvika 19 January 2038. 3:14:08 Kuwanda mumasekonzi kubva 01/01/1970 gore kusvika 2 ^ 31 (2147483648), izvo zvinoita kuti nhamba kunaka. Zvinonzi kushandisa asiri 32-ikakuruma uye 64-ikakuruma shanduka kuchengetera nguva dambudziko kunonoka kuchaita kwemamwe makore mabhiriyoni 300: programmers akaita notupukanana, sezvinoita sedambe, kunyanya pashure 2000.

Kukarukureta nezvenguva uye kutsunga musi

The nguva hunomiririrwa chikuru nhamba, zvinoita kuti tikwanise kuva nyore svomhu.

An dzinonakidza pfungwa iri kushandisa svomhu iyi sezvo nhoroondo kiyi, uye / kana nemamwe zviitiko. Kushandisa purogiramu PHP timestamp pachiimbwa mukomana aishandisa ID kana mumwe mushanyi sezvo kiyi, haugoni kunetseka kwayo yokusiyana uye kwete kupedza nguva pairi.

The Ivan Kuchin rokuchinja musi uye nguva

nguva () basa zvakananga anopa kusanganiswa zivo nguva chidhindo. Pasinei uye kana kutendeuka PHP musi kuti timestamp zvaitwa, inogona adzorerwe chero yakakunakira kumiririrwa mashandiro musi (youduku [, timestamp]). Kana parameter wechipiri chinoshayikwa, iwe uchava musi kuitika uye / kana nguva. The ukoshi anogona kuva chero format, mutauro maturusi zvinopa ose anodiwa kusarudza kuti nzvimbo uye musi uye nguva formatting.

Storage mu kusanganiswa chimiro anogara zvinodiwa hunhu, uye kuwedzera, yekudyidzana nyore kukwanisa kugadzirisa. Chinokosha ndiko mukana kushandisa mano masvomhu kudzora nguva uye pakuverenga misi.

Kudzivisa kukanganisa chakadaro Masvomhu haisi zvichibvira, mugumisiro upi kukarukureta iri zvichishandurwa inongoitika musi / nguva youduku ndiyo nguva dzose zvakarurama.

Localization nguva

Uye kunyange zvazvo PHP pamusi timestamp uye kutevera-kukwira nhamba dziri nyore uye yakanaka munyika yanhasi, asi wakachengetedza yakawanda zvikonzero kuchengeta uye kushandisa musi zvayo dzinongoitika, uye dzimwe nguva nenzira National chaizvo format.

simba Modern makombiyuta 'Zvaringana; Database zvinobudirira kumirira uye chitoro ruzivo, mharidzo rinoitwa nokukurumidza uye zvakarurama algorithm anoita basa chaiko misi rakanyatsojeka zvinogamuchirika.

Assembly nguva uye mari zviri bytes kwenguva refu kare. Kwete mabasa akawanda zvokuti zvinoda yakarurama muchina remitemo uye mharidzo tsindirana pakati data, vakawanda zvirongwa chokuita rinoshanda magariro mabhora, apo musi uchapiwa kwayo pamanyorerwo yakakodzera.

With zvose izvi kutyora mashoko pamusoro PHP, timestamp hakuiti chisanyanya hunobatsira kukosha, uye anofanira kuva zvombo ane unyanzvi yokuvaka.

Current nguva

The Kazhinji ose mabasa PHP Time: ano time = timestamp. misi All vari kutaurwa manually kubudikidza etc. inodzidzisa kana yokuvaka, kazhinji Data :. Kutanga kana kuguma kwenguva, zuva rekuberekwa, basa, Time Data zvinogamuchirwa ane vatambi karenda raitongwa. Zvikurukuru, datapicker ino jQuery, izvo anobvumira kupinda zuva uye / kana nguva zvakananga mubrowser zvakatipoteredza, web papeji.

Datapicker uye kubudirira zvakafanana anoitwa kwete chete zvakakwana dzichipfekeka. Naivowo vawane kukwanisa gadzirisa sei localization musi / nguva format, uyewo mazita mwedzi, mazuva vhiki, kuparadzana hunhu zvinhu zuva uye nguva.

A yokuvaka anogona kuita pamusoro PHP musi kuti timestamp kunovhenekwa, kuenzanisa, svomhu kushandiswa.

The Data vakapinda maererano anoishandisa (mushanyi) - ichi hachisi PHP timestamp basa ane chinangwa yakasiyana. Zvisinei, zviri PHP ichi zvakananga mabasa anobvumira yokuvaka kudzora nguva date kupinda uye User mazuva.