Environment setup
14 minutes46 secondsPHP file format
10 minutes32 secondsvariable
12 minutes06 secondssingle quotes double quotes
15 minutes12 secondstype of data
11 minutes26 secondsData type conversion
11 minutes52 secondsSystem constants
12 minutes44 secondsoperator
16 minutes08 secondsSeveral situations in which it is false
14 minutes02 secondsprocess control
14 minutes33 secondsunder process control
10 minutes11 secondson loop
14 minutes06 secondsunder loop
15 minutes21 secondsFunctionally
19 minutes25 secondsin function
12 minutes24 secondsunder function
11 minutes12 secondsCommonly used functions
14 minutes50 secondsFile contains
10 minutes59 secondson array
12 minutes06 secondsin array
13 minutes55 secondsunder array
12 minutes51 secondssuperglobal array
13 minutes32 secondsError handling
10 minutes29 secondsdate function
14 minutes45 seconds