Variable type
22 minutes07 secondsVariable detection
10 minutes57 secondsType detection
03 minutes39 secondsDebug print variables
10 minutes09 secondstype conversion
15 minutes07 secondsAssignment
07 minutes01 secondsdestroy
06 minutes33 secondsDynamic variable name
03 minutes40 secondsThree points to note about arithmetic operators
07 minutes52 secondscomparison operator
07 minutes12 secondsincrement decrement operator
03 minutes34 secondsLogical Operators
06 minutes29 secondsincrement decrement operator
08 minutes13 secondsString operators
05 minutes06 secondsassignment operator
03 minutes00 secondsswitch case control structure
17 minutes31 secondsdo while
06 minutes26 secondsfor loop
08 minutes09 secondsbreak和continue
05 minutes31 secondsBridge crossing problem
09 minutes55 secondsmultiplication table
08 minutes53 secondsOne hundred dollars buys one hundred chickens
12 minutes50 secondsFunction concept
07 minutes04 secondsfunction definition format
04 minutes03 secondsFunction execution and return process
11 minutes10 secondsFunction parameter passing method
09 minutes25 secondsOptional parameters
06 minutes44 secondsfunction scope
13 minutes43 secondsDynamically calling functions
03 minutes05 secondstimestamp function
16 minutes20 secondsTimestamp formatting
08 minutes28 secondsDate parsing function
12 minutes07 secondsString definition method
06 minutes35 secondsEscape, variable parsing, and speed comparison
09 minutes21 secondsCommon string functions
38 minutes27 secondsfile management system
22 minutes39 secondsArray definition method
04 minutes09 secondsarray type
11 minutes47 secondsArray key rules
09 minutes33 secondsOperate array unit
09 minutes28 secondsTraverse array
15 minutes52 secondsArray cursor operations
Common functions for arrays
lamb breeding
superglobal variables
13 minutes26 secondsconstant
File contains
10 minutes44 secondsDomain names and DNS
Configure virtual host
hexadecimal concept
Bit operations
Floating point numbers are not precise enough
Short-circuiting properties of logical operators
recursive concept
Recursive tricks
Recursion exercises
10 minutes26 secondsstaticstatic variable
14 minutes02 seconds