The odd number in PHP-Translated by Ma yongzhan

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Original address: http://phplens.com/phpeverywhere? Q = node/View/249
Thoughts Caused by a bug in others' ADODB
 
Echo 09, "=> (09) <br> ";
Echo 9, "=> (9) <br> ";
 
You can try it. The output result is:
 
0 => (09)

9 => (9)
 
Instead
 
09 => (09)

9 => (9)
 
 
 
 
 
The translator made a test. After analysis, the numbers starting with. 0 will be treated as octal, and those starting with 0x will be treated as hexadecimal, as follows:
 
Echo 0x11, "=> (011) <br> ";

Echo 010, "=> (010) <br> ";
 
This will output:
 
17 => (011)

8 => (010)
 
Of course 10x16 + 1 = 17
 
1x8 + 0 = 8
 
OK.
 
 
 
 
 
 
 
 
 
Someone reported a bug in ADODB, the open source dB library I maintain. I went crazy for half an hour until I realized the problem. Here's a little gotcha you can try:
Echo 09, "=> (09) <br> ";
Echo 9, "=> (9) <br> ";
If you want CT the above Code to produce the same values, you are sadly mistaken. Try it. I will post a followup later