| str_replace & assign to a var? [message #182755] |
Wed, 04 September 2013 17:29  |
bill
Messages: 310
Registered: October 2010
Karma: 0
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Senior Member |
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Hi Guys & Gals,
If this is a dumb question I apologize but I'm stuck. Yes, I'm
essentially a newbie to many things yet in PHP.
I have the following canned code:
------------
$arr = array("blue","red","green","yellow");
print_r(str_replace("red","pink",$arr,$i));
echo "<br>" . "Replacements: $i";
-----------
All I want to do is change "red" to "pink" IN the array or a new array.
How do I do that?
In other words, I want to change the original array to have "pink" in it
instead of "red".
My actual goal is to take a var of "-1111-111-111" to "1111111111" and
remove the dashes. The appearance of the dashes is essentially random
but there will only be 3 of them max or even none.
Caveat: the dashes can occur almost anywhere; the var could be, for
example, -1-1-1" , 111, 999, 99-9, 9-9, etc. on up to all 9's. and so on.
I can count the dashes, see the dashes in one string and all that, but I
cannot modify seem to remove the dashes from the orginal var in order to
create a var without any dashes.
If I can get the digits-only into a new var then I can perform the
analysis I wish to on those documents.
I'd also like to avoid using regex.
TIA,
Twayne`
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| Re: str_replace & assign to a var? NEVER MIND [message #182757 is a reply to message #182755] |
Wed, 04 September 2013 18:00  |
bill
Messages: 310
Registered: October 2010
Karma: 0
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Senior Member |
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On 2013-09-04 1:29 PM, Twayne wrote:
> Hi Guys & Gals,
>
> If this is a dumb question I apologize but I'm stuck. Yes, I'm
> essentially a newbie to many things yet in PHP.
>
> I have the following canned code:
> ------------
> $arr = array("blue","red","green","yellow");
> print_r(str_replace("red","pink",$arr,$i));
> echo "<br>" . "Replacements: $i";
> -----------
>
I got it; no idea why it wouldn't work last night, but ... this works fine:
-----------------
$acode = $code;
echo "<br />";
$acode = str_replace("-", "", $code)."<br />" ;
echo $acode." <br />";
echo "acode is : " . strlen($acode);
------- OUTPUT ---------
Original Code : 3622508-980
Length : 11 characters.
3622508980
acode is : 16
----------------------
Sorry for the false start;
Momentary brain fart I guess, but really irritating anyway!
Twayne`
> All I want to do is change "red" to "pink" IN the array or a new array.
> How do I do that?
>
>
> In other words, I want to change the original array to have "pink" in it
> instead of "red".
>
> My actual goal is to take a var of "-1111-111-111" to "1111111111" and
> remove the dashes. The appearance of the dashes is essentially random
> but there will only be 3 of them max or even none.
>
> Caveat: the dashes can occur almost anywhere; the var could be, for
> example, -1-1-1" , 111, 999, 99-9, 9-9, etc. on up to all 9's. and so on.
>
> I can count the dashes, see the dashes in one string and all that, but I
> cannot modify seem to remove the dashes from the orginal var in order to
> create a var without any dashes.
> If I can get the digits-only into a new var then I can perform the
> analysis I wish to on those documents.
> I'd also like to avoid using regex.
>
> TIA,
>
> Twayne`
>
>
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| Re: str_replace & assign to a var? [message #182758 is a reply to message #182755] |
Wed, 04 September 2013 18:16 |
J.O. Aho
Messages: 194
Registered: September 2010
Karma: 0
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Senior Member |
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On 04/09/13 19:29, Twayne wrote:
> Hi Guys & Gals,
>
> If this is a dumb question I apologize but I'm stuck. Yes, I'm
> essentially a newbie to many things yet in PHP.
>
> I have the following canned code:
> ------------
> $arr = array("blue","red","green","yellow");
> print_r(str_replace("red","pink",$arr,$i));
> echo "<br>" . "Replacements: $i";
> -----------
>
> All I want to do is change "red" to "pink" IN the array or a new array.
> How do I do that?
>
>
> In other words, I want to change the original array to have "pink" in it
> instead of "red".
>
> My actual goal is to take a var of "-1111-111-111" to "1111111111" and
> remove the dashes. The appearance of the dashes is essentially random
> but there will only be 3 of them max or even none.
>
Here is an example how to make it neatly and this can be made quite
dynamic by chancing the function to use for remapping the cell content:
<?php
function filterNumbers($str) {
return str_replace('-', '', $str);
}
$oldArray=array('1234-1234', '2345-2345', 'ABCD.FGHI', '3456.3456',
'-0987-0987');
$newArray=array_map('filterNumbers', $oldArray);
var_dump($newArray);
?>
The filterNumbers do the actual work (you can make it a lot more
advanced, depending on your needs).
then you input the remapping function and the original array as
arguments and you then get a modified array back.
If you want to remove items in an array, then use the array_filter(),
the argument order is different and the function needs to return true or
false.
--
//Aho
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| Re: str_replace & assign to a var? [message #182759 is a reply to message #182758] |
Wed, 04 September 2013 18:52 |
bill
Messages: 310
Registered: October 2010
Karma: 0
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Senior Member |
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On 2013-09-04 2:16 PM, J.O. Aho wrote:
> On 04/09/13 19:29, Twayne wrote:
>> Hi Guys & Gals,
>>
....
>>
>> My actual goal is to take a var of "-1111-111-111" to "1111111111" and
>> remove the dashes. The appearance of the dashes is essentially random
>> but there will only be 3 of them max or even none.
>>
>
> Here is an example how to make it neatly and this can be made quite
> dynamic by chancing the function to use for remapping the cell content:
>
> <?php
>
> function filterNumbers($str) {
> return str_replace('-', '', $str);
> }
>
> $oldArray=array('1234-1234', '2345-2345', 'ABCD.FGHI', '3456.3456',
> '-0987-0987');
>
> $newArray=array_map('filterNumbers', $oldArray);
>
> var_dump($newArray);
>
> ?>
>
> The filterNumbers do the actual work (you can make it a lot more
> advanced, depending on your needs).
>
> then you input the remapping function and the original array as
> arguments and you then get a modified array back.
>
> If you want to remove items in an array, then use the array_filter(),
> the argument order is different and the function needs to return true or
> false.
>
I'm not ignoring your advice; just thinking & doing some research; those
are new areas for me a and they look very useful. THANKS!
Twayne`
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| Re: str_replace & assign to a var? [message #182760 is a reply to message #182758] |
Thu, 05 September 2013 08:48 |
Curtis Dyer
Messages: 34
Registered: January 2011
Karma: 0
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Member |
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"J.O. Aho" <user(at)example(dot)net> wrote:
> On 04/09/13 19:29, Twayne wrote:
>> Hi Guys & Gals,
>>
>> If this is a dumb question I apologize but I'm stuck. Yes, I'm
>> essentially a newbie to many things yet in PHP.
>>
>> I have the following canned code:
>> ------------
>> $arr = array("blue","red","green","yellow");
>> print_r(str_replace("red","pink",$arr,$i));
>> echo "<br>" . "Replacements: $i";
>> -----------
>>
>> All I want to do is change "red" to "pink" IN the array or a
>> new array. How do I do that?
>>
>>
>> In other words, I want to change the original array to have
>> "pink" in it instead of "red".
Have you checked the PHP documentation? This is clearly explained:
<http://php.net/str_replace>.
<snip>
> Here is an example how to make it neatly and this can be made
> quite dynamic by chancing the function to use for remapping the
> cell content:
>
> <?php
>
> function filterNumbers($str) {
> return str_replace('-', '', $str);
> }
>
> $oldArray=array('1234-1234', '2345-2345', 'ABCD.FGHI',
> '3456.3456', '-0987-0987');
>
> $newArray=array_map('filterNumbers', $oldArray);
>
> var_dump($newArray);
>
> ?>
>
> The filterNumbers do the actual work (you can make it a lot more
> advanced, depending on your needs).
In this case, however, it seems unnecessary. The `str_replace'
function will already return the altered array when the `subject'
parameter is an array. So, in the OP's code snippet above, we need
to change the `str_replace' line:
<?php
$i = 0;
/* ... */
$arr = str_replace('red', 'pink', $arr, $i);
print_r($arr);
?>
<snip>
--
Curtis Dyer
<?$x='<?$x=%c%s%c;printf($x,39,$x,39);?>';printf($x,39,$x,39);?>
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| Re: str_replace & assign to a var? [message #182761 is a reply to message #182760] |
Thu, 05 September 2013 14:34 |
bill
Messages: 310
Registered: October 2010
Karma: 0
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Senior Member |
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On 2013-09-05 4:48 AM, Curtis Dyer wrote:
> "J.O. Aho" <user(at)example(dot)net> wrote:
>
>> On 04/09/13 19:29, Twayne wrote:
>>> Hi Guys & Gals,
>>>
....
>>> I have the following canned code:
>>> ------------
>>> $arr = array("blue","red","green","yellow");
>>> print_r(str_replace("red","pink",$arr,$i));
>>> echo "<br>" . "Replacements: $i";
>>> -----------
>>>
>>> All I want to do is change "red" to "pink" IN the array or a
>>> new array. How do I do that?
....
>>
>> The filterNumbers do the actual work (you can make it a lot more
>> advanced, depending on your needs).
>
> In this case, however, it seems unnecessary. The `str_replace'
> function will already return the altered array when the `subject'
> parameter is an array. So, in the OP's code snippet above, we need
> to change the `str_replace' line:
>
> <?php
> $i = 0;
>
> /* ... */
>
> $arr = str_replace('red', 'pink', $arr, $i);
> print_r($arr);
> ?>
>
>
> <snip>
>
Hmm, I've read the Manual, w3schools, Tizag and several others but never
did pick up on 'subject' being my issue.
Thanks much,
Twayne`
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