Hello. I am testing this curious code and I don't understand yet why it
doesn't work with the 2nd case:
Case 1:
$number = "2,4";
$number = ereg_replace(",",".",$number);
echo $number; // displays "2.4"
Case 2:
$number = "2.4";
$number = ereg_replace(".",",",$number);
echo $number; // displays a strange thing!!!
Anyone know why ereg_replace() is not working? Thanks is advance, and
happy new year!
Regards,
knocte 4 2408
Because you are using regular expressions! You are replacing any occurrance
of any character (".") with a comma.
At least read the manual on what the functions are :( http://www.php.net/manual/es/function.ereg-replace.php http://www.php.net/manual/es/function.str-replace.php
(spanish version, as I'm guessing that's your native language based on your
headers)
knocte wrote: Hello. I am testing this curious code and I don't understand yet why it doesn't work with the 2nd case:
Case 1:
$number = "2,4"; $number = ereg_replace(",",".",$number); echo $number; // displays "2.4"
Case 2:
$number = "2.4"; $number = ereg_replace(".",",",$number); echo $number; // displays a strange thing!!!
Anyone know why ereg_replace() is not working? Thanks is advance, and happy new year!
Regards,
knocte
Agelmar escribió: Because you are using regular expressions! You are replacing any occurrance of any character (".") with a comma.
At least read the manual on what the functions are :(
http://www.php.net/manual/es/function.ereg-replace.php http://www.php.net/manual/es/function.str-replace.php
(spanish version, as I'm guessing that's your native language based on your headers)
Oh thanks! What a dumb question I did!
Now I realize I have other functions using ereg_replace. In these cases,
do you think I should change it also to str_replace?:
function TA2DB($sTA){
$sDB = ereg_replace("\r\n","\\\\r\\\\n",$sTA);
$sDB= ereg_replace("\r","\\\\r\\\\n",$sDB);
$sDB= ereg_replace("\n","\\\\r\\\\n",$sDB);
return $sDB;
};
function DB2TA($sDB){
$sTA = ereg_replace("\\\\r\\\\n","\r\n",$sDB);
return $sTA;
};
Thanks in advance.
knocte wrote: Agelmar escribió: Because you are using regular expressions! You are replacing any occurrance of any character (".") with a comma.
At least read the manual on what the functions are :(
http://www.php.net/manual/es/function.ereg-replace.php http://www.php.net/manual/es/function.str-replace.php
(spanish version, as I'm guessing that's your native language based on your headers)
Oh thanks! What a dumb question I did!
Now I realize I have other functions using ereg_replace. In these cases, do you think I should change it also to str_replace?:
function TA2DB($sTA){ $sDB = ereg_replace("\r\n","\\\\r\\\\n",$sTA); $sDB= ereg_replace("\r","\\\\r\\\\n",$sDB); $sDB= ereg_replace("\n","\\\\r\\\\n",$sDB);
return $sDB; };
function DB2TA($sDB){ $sTA = ereg_replace("\\\\r\\\\n","\r\n",$sDB);
return $sTA; };
Thanks in advance.
Most definitely. ereg_ and preg_ do regular expression matching, and are
much slower than str_ functions, which simply match strings. Because you are
not using any regular expressions, str_replace would be a much better choice
than ereg_replace. You would use ereg_replace for things like
"<!--([^-]*([^-]|-([^-]|-[^>])))*//-->" where you actually want to match
patterns, not just specific strings.
Agelmar escribió: Most definitely. ereg_ and preg_ do regular expression matching, and are much slower than str_ functions, which simply match strings. Because you are not using any regular expressions, str_replace would be a much better choice than ereg_replace. You would use ereg_replace for things like "<!--([^-]*([^-]|-([^-]|-[^>])))*//-->" where you actually want to match patterns, not just specific strings.
Thanks but, following your advice, I have changed ereg_replace by
str_replace in these functions that use \r\n and stuff like that, and it
doesn't work properly. This thread has been closed and replies have been disabled. Please start a new discussion. Similar topics
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