Does strlen() get CRIPPLED when operating on strs of odd chars (like FF 0E &c)??

[Quantainne]

Hello experts and others on the way there,

 

I get an AWFUL, deficient count from strlen() when I apply it to a string of chars falling near the ends of the ascii range, like 1, 14, 216 and 255. Take a look at the discrepancy of FOUR below. My version is 5.0.4. I'll be glad to read any feedback on how to get an accurate count, if possible.

 

------------ Output, the source of the resulting browser page: -----------

 

--------------------------------The script: --------------------------------

<?php

$nontext1 = file_get_contents("C:/Scratch/oddChars.txt");
$ordinary1 = file_get_contents("C:/Scratch/allPlain.txt");

echo "

php takes up a 34-byte of non-text chars with file_get_contents, sees it as having " .
strlen($nontext1). " bytes; an echo shows that the var contains all 34 even though strlen
says " .strlen($nontext1). " (" .mb_strlen($nontext1). " for mb_strlen). The results are the same
with fread() using the r attribute, and fread() using the rb pair of attributes.
The entire string:
$nontext1 (the 4th from the end is a cr, 0x0D)

Ind 0: " .$nontext1{0}. "
Ind 1: " .$nontext1{1}. "
Ind 2: " .$nontext1{2}. "
Ind 3: " .$nontext1{3}. "
Ind 4: " .$nontext1{4}. "
Ind 5: " .$nontext1{5}. "
Ind 6: " .$nontext1{6}. "
Ind 7: " .$nontext1{7}. "
Ind 8: " .$nontext1{8}. "
Ind 9: " .$nontext1{9}. "
Ind 10: " .$nontext1{10}. "
Ind 11: " .$nontext1{11}. "
Ind 12: " .$nontext1{12}. "
Ind 13: " .$nontext1{13}. "
Ind 14: " .$nontext1{14}. "
Ind 15: " .$nontext1{15}. "
Ind 16: " .$nontext1{16}. "
Ind 17: " .$nontext1{17}. "
Ind 18: " .$nontext1{18}. "
Ind 19: " .$nontext1{19}. "
Ind 20: " .$nontext1{20}. "
Ind 21: " .$nontext1{21}. "
Ind 22: " .$nontext1{22}. "
Ind 23: " .$nontext1{23}. "
Ind 24: " .$nontext1{24}. "
Ind 25: " .$nontext1{25}. "
Ind 26: " .$nontext1{26}. "
Ind 27: " .$nontext1{27}. "
Ind 28: " .$nontext1{28}. "
Ind 29: " .$nontext1{29}. "
Ind 30: " .$nontext1{30}. "
Ind 31: " .$nontext1{31}. "
Ind 32: " .$nontext1{32}. "
Ind 33: " .$nontext1{33}. "


More expectedly, php takes up a 34-byte file of ordinary chars with file_get_contents,
sees it as having " .strlen($ordinary1). " bytes; an echo shows that the var
contains all 34, agreeing with what strlen says as " .strlen($ordinary1). ". The entire string:
$ordinary1

Ind 0: " .$ordinary1{0}. "
Ind 1: " .$ordinary1{1}. "
Ind 2: " .$ordinary1{2}. "
Ind 3: " .$ordinary1{3}. "
Ind 4: " .$ordinary1{4}. "
Ind 5: " .$ordinary1{5}. "
Ind 6: " .$ordinary1{6}. "
Ind 7: " .$ordinary1{7}. "
Ind 8: " .$ordinary1{8}. "
Ind 9: " .$ordinary1{9}. "
Ind 10: " .$ordinary1{10}. "
Ind 11: " .$ordinary1{11}. "
Ind 12: " .$ordinary1{12}. "
Ind 13: " .$ordinary1{13}. "
Ind 14: " .$ordinary1{14}. "
Ind 15: " .$ordinary1{15}. "
Ind 16: " .$ordinary1{16}. "
Ind 17: " .$ordinary1{17}. "
Ind 18: " .$ordinary1{18}. "
Ind 19: " .$ordinary1{19}. "
Ind 20: " .$ordinary1{20}. "
Ind 21: " .$ordinary1{21}. "
Ind 22: " .$ordinary1{22}. "
Ind 23: " .$ordinary1{23}. "
Ind 24: " .$ordinary1{24}. "
Ind 25: " .$ordinary1{25}. "
Ind 26: " .$ordinary1{26}. "
Ind 27: " .$ordinary1{27}. "
Ind 28: " .$ordinary1{28}. "
Ind 29: " .$ordinary1{29}. "
Ind 30: " .$ordinary1{30}. "
Ind 31: " .$ordinary1{31}. "
Ind 32: " .$ordinary1{32}. "
Ind 33: " .$ordinary1{33}. "\n\n\n";

?>

 

[salathe]

Can you show the byte values of the characters?

[Quantainne]

Sure, in decimal value they're

 

Ind 0: 255;  Ind 1: 216;  Ind 2: 255;  Ind 3: 224;  Ind 4: 32; 

Ind 5: 16;  Ind 6: 74;  Ind 7: 70;  Ind 8: 73;  Ind 9: 70; 

Ind 10: 32;  Ind 11: 1;  Ind 12: 1;  Ind 13: 1;  Ind 14: 32; 

Ind 15: 1;  Ind 16: 32;  Ind 17: 1;  Ind 18: 32;  Ind 19: 32; 

Ind 20: 255;  Ind 21: 219;  Ind 22: 32;  Ind 23: 67;  Ind 24: 32; 

Ind 25: 20;  Ind 26: 14;  Ind 27: 15;  Ind 28: 18;  Ind 29: 15; 

Ind 30: 13;  Ind 31: 20;  Ind 32: 18;  Ind 33: 16.