php operatorsthis section lists the different operators used in php.
arithmetic operators
| + | addition | x=2 x+2 |
4 |
| – | subtraction | x=2 5-x |
3 |
| * | multiplication | x=4
http://www.gaodaima.com/?p=50132operators:php operators_phpx*5 |
20 |
| / | division | 15/5 5/2 |
3 2.5 |
| % | modulus (division remainder) | 5%2 10%8 10%2 |
1 2 0 |
| ++ | increment | x=5 x++ |
x=6 |
| — | decrement | x=5 x– |
x=4 |
assignment operators
| = | x=y | x=y |
| += | x+=y | x=x+y |
| -= | x-=y | x=x-y |
| *= | x*=y | x=x*y |
| /= | x/=y | x=x/y |
| .= | x.=y | x=x.y |
| %= | x%=y | x=x%y |
comparison operators
| == | is equal to | 5==8 returns false |
| != | is not equal | 5!=8 returns true |
| > | is greater than | 5>8 returns false |
| < | is less than | 5<8 returns true |
| >= | is greater than or equal to | 5>=8 returns false |
| <= | is less than or equal to | 5<=8 returns true |
logical operators
| && | and | x=6 y=3 (x < 10 && y > 1) returns true |
| or | x=6 y=3 (x==5 y==5) returns false |
|
| ! | not | x=6 y=3 !(x==y) returns true |
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