题目

SENG1050 (T3 2025 PSB) Practice Quiz Week 6

多项选择题

Which of the following variable names are valid in PHP?

选项

A.$MY___Var1Ab13

B.$my variable

C.$_abc_123

D.$4useBY

E.$current

F.$my!Var

G.$for

H.$!Number

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标准答案

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思路分析

Question restatement: Which of the following variable names are valid in PHP? Options to consider: "$MY___Var1Ab13", "$my variable", "$_abc_123", "$4useBY", "$current", "$my!Var", "$for", "$!Number". Option 1: "$MY___Var1Ab13". This starts with a dollar sign followed by a sequence that begins with a letter (here, 'M'), and uses only letters, digits, and underscores thereafter. Underscores are allowed anywhere in the identifier, and mixed c......Login to view full explanation