After following, you can keep track of his dynamic information in a timely manner
變量特點(diǎn): 1.必須以$開始 2.變量首字母不能為數(shù)字 3.變量名字區(qū)分大小寫 4.變量不要用特殊符號(hào),中文_不算特殊符號(hào) 5.變量命名要有意義
2018-01-111個(gè)贊
Courses in the relevant section:Learning php annotations
// 單行注釋 #單行注釋 /* */多行注釋
2018-01-110個(gè)贊
Courses in the relevant section:PHP data type Boolean (actually it is the Chinese Book of Changes)
布爾型 = true ; faslel 1為true 0為false
2018-01-110個(gè)贊
Courses in the relevant section:Use of branch structure switch statement in PHP flow control
if..else 做true 跟false判斷
2018-01-110個(gè)贊
Courses in the relevant section:php file contains functions
inlcude 繼續(xù)執(zhí)行 require 中斷 include_once 繼續(xù)執(zhí)行,并檢測(cè)是否曾經(jīng)包含 require_once 中斷并檢測(cè)是否反復(fù)包含
2018-01-220個(gè)贊
Courses in the relevant section:php array definition
1.下標(biāo)從零開始 2.指定過下標(biāo)值,下標(biāo)就為我們指定的值 3.下標(biāo)會(huì)自動(dòng)增長1
1.刪除UNSET 2.刪除中間值別不會(huì)讓后面的向前自動(dòng)移動(dòng),值不變 3.刪除其中某個(gè)值新加的值也不會(huì)頂替原有值位置依然遵循最大值加1原則
2018-01-260個(gè)贊
Courses in the relevant section:The difference between do...while loops in PHP process control
while 檢查布爾判斷區(qū)域,成立,執(zhí)行;不成立,跳過 do while 無論while是否成立都先執(zhí)行一次
2018-01-120個(gè)贊
Courses in the relevant section:while loop
while 布爾型循壞
2018-01-110個(gè)贊