On 4/7/07, The Editor <[EMAIL PROTECTED]> wrote:Hi all!...2) I'm still trying
to make it more configurable by setting a fewvariables like the following as
SDV variables. But can't figure outhow to get the $vars to substitute with
their value when used in thefunction. Here's a repost of my question on the
topic yesterday.> SDV($ZAPorderrows, '<tr><td> nowrap>$itemname </td><td><input
type=text size=4> name=$itemlabel value=$itemqty> onblur=calculate()>
at</td><td> align=right>$itemprice </td><td><input type=text size=7>
name=$itemlabel value=$itemcost onblur=calculate()>
onFocus=blur()></td></tr>');>> Then somewhere in the markup for the form I want
to be able to do> something like this (within a foreach loop):>> $orderrows .=
$ZAPorderrows;>> However I need to be able to replace the variables like
$itemname and> $itemlabel with their current value at that time. I can't seem
to get> the right combination of ' " etc to make this work. Can someone>
suggest something?Cheers,DanHi Dan, Your intuition is apparently bugging you,
like this: there must be a way to invoke "string $var substitutions" on a
string-variable, not just on literal strings. Well the closest thing (AFAIK) is
strtr() (http://www.php.net/manual/en/function.strtr.php). However, since
you're performance conscious, I did some experimenting just to see how various
alternatives would fare. See the code below. It turns out that str_replace
outruns everything by far. Strtr() is 4 times slower(!) and using eval() to
invoke "string $var substitutions" is 7..8x slower. Patrick at some point
probably did the same profiling. A similar problem occurs in FmtPageName(), he
uses: $fmt = str_replace(array_keys($g),array_values($g),$fmt);
Which is also your best bet. -Keep that mindstorm going!/jmps On the topic of
the formula to calculate shipping etc: you could possibly output it directly
from the cart markup, custom made. ============================<?php
$EnableStopWatch=1;function StopWatch($x) { global $StopWatch,
$EnableStopWatch; if (!$EnableStopWatch) return; static $wstart = 0, $ustart
= 0; list($usec,$sec) = explode(' ',microtime()); $wtime = ($sec+$usec); if
(!$wstart) $wstart = $wtime; if ($EnableStopWatch != 2) { $StopWatch[] =
sprintf("%05.2f %s", $wtime-$wstart, $x); return; } $dat = getrusage();
$utime = ($dat['ru_utime.tv_sec']+$dat['ru_utime.tv_usec']/1000000); if
(!$ustart) $ustart=$utime; $StopWatch[] = sprintf("%05.2f %05.2f %s",
$wtime-$wstart, $utime-$ustart, $x);}function Expand(){ global $StopWatch;
$g=array('itemname'=>'Easter Egg', 'itemprice'=>'7,00', 'itemqty'=>'12',
'itemlabel'=>'Customer Delusion', 'itemcost'=>'2 pennies'); $fmtrep='<tr><td>
nowrap>$itemname </td><td><input type=text size=4> name=$itemlabel
value=$itemqty> onblur=calculate()> at</td><td> align=right>$itemprice
</td><td><input type=text size=7> name=$itemlabel value=$itemcost
onblur=calculate()> onFocus=blur()></td></tr>'; $fmtrep2='<tr><td>
nowrap>$itemname </td><td><input type=text size=4> name=$itemlabel
value=$itemqty> onblur=calculate()> at</td><td> align=right>$itemprice
</td><td><input type=text size=7> name=$itemlabel value=$itemcost
onblur=calculate()> onFocus=blur()></td></tr>'; $fmteval='return "<tr><td>
nowrap>$$g[itemname] </td><td><input type=text size=4> name=$$g[itemlabel]
value=$$g[itemqty]> onblur=calculate()> at</td><td> align=right>$$g[itemprice]
</td><td><input type=text size=7> name=$$g[itemlabel] value=$$g[itemcost]
onblur=calculate()> onFocus=blur()></td></tr>";'; $fmteval2='return "<tr><td>
nowrap>$$itemname </td><td><input type=text size=4> name=$$itemlabel
value=$$itemqty> onblur=calculate()> at</td><td> align=right>$$itemprice
</td><td><input type=text size=7> name=$$itemlabel value=$$itemcost
onblur=calculate()> onFocus=blur()></td></tr>";'; foreach($g as $k=>$v)
$$k=$v; StopWatch('STREPLACE'); for($i=0;$i<100000;$i++) $fmt1 =
str_replace(array_keys($g),array_values($g),$fmtrep); StopWatch('STRTR');
for($i=0;$i<100000;$i++) $fmt1b = strtr($fmtrep2,$g);
StopWatch('EVALARR'); for($i=0;$i<100000;$i++) $fmt2 = eval($fmteval);
StopWatch('EVALVARS'); for($i=0;$i<100000;$i++) $fmt2b =
eval($fmteval2); StopWatch('END'); if($fmt1!=$fmt1b)
print"FAILED\n\nREP =$fmt1\n\nTR =$fmt1b"; if($fmt1!=$fmt2)
print"FAILED\n\nREP =$fmt1\n\nEVALARR=$fmt2"; if($fmt1!=$fmt2b)
print"FAILED\n\nREP =$fmt1\n\nEVALVARS=$fmt2b";
print_r($StopWatch);}Expand();exit;
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