string - Adding characters to str_replace in PHP -

-

i have php file thread ($tid) , post ($pid) ids defined , i'm looking use str_replace combine them , create desired output (below) &p= added:

desired output: 

$tid&p=$pid

the closest i've got doing this:

$tid=$t1; $pid=$p1; $tid=str_replace("$tid","$tid"."$pid",$tid);

the result is: 

$tid$pid

i may need use function (not sure if so?) in str_replace support &p= being added, trying add in quotes directly doesn't seem work resulting in database errors.

edit #1: tried doing following based on comments far:

$tid=""; $tid.="$t1"; $tid.="$p1";  $tid=$tid;

that results in same previous example above: 

$tid$pid

as add &p= database error:

$tid.="&p=";

so question how add &p= edit #1 example above correctly?

i'm attempting understand question little bit. have couple options alluded in comments above. could, instance (where '1', '2', , '3' replaced desired values):

<?php $tid=1; $pid=2; $amp=3; $tid=str_replace("$tid","$tid".'$amp;p='."$pid",$tid);  echo $tid; ?>

here can explicitly state in 'replace' argument of str_replace missing string should part of replacement string.

or use concatenation operator generate string desire simpler given (little) know of surrounding code/use-case:

<?php $tid=1; $pid=2; $amp=3;  echo "$tid".'$amp;p='."$pid"; ?>

the reason i'd recommend latter, due fact it's less resource intensive produce desired result appears string. str_replace() searches "haystack" or subject string using search string , must replace each of found instances replace string.


Comments

Post a Comment

Popular posts from this blog

c - How to retrieve a variable from the Apache configuration inside the module? -

-
i'm building custom apache module. how retrieve variable apache configuration inside module? see variable "some_var_config_from_apache_or_htaacess" inside apache module: /* source: http://people.apache.org/~humbedooh/mods/examples/mod_example_1.c */ /* include required headers httpd */ #include "httpd.h" #include "http_core.h" #include "http_protocol.h" #include "http_request.h" static void register_hooks(apr_pool_t *pool); static int example_handler(request_rec *r); /* define our module entity , assign function registering hooks */ module ap_module_declare_data example_module = { standard20_module_stuff, null, // per-directory configuration handler null, // merge handler per-directory configurations null, // per-server configuration handler null, // merge handler per-server configurations null, // directives may have httpd register_hoo
Read more

c# - Constructor arguments cannot be passed for interface mocks -

-
when debug code , read line mocklessonplannerafactory creation error: constructor arguments cannot passed interface mocks. var mockschoolclasscodeservice = new mock<ischoolclasscodeservice>(); var mockdateservice = new mock<idateservice>(); var mocklessonplannerafactory = new mock<ilessonplannerafactory>(mockdateservice.object); var mocklessonplannerbfactory = new mock<ilessonplannerbfactory>(mockdateservice.object); var service = new timetableservice(mockunitofwork.object, mocklessonplannerafactory.object, mocklessonplannerbfactory.object, mockschoolclasscodeservice.object); my timetableservice accepts instances of interface type only. mocklessonplannerafactory , bfactory... want in constructor idateservice passed. what wrong code? the clue in error message "constructor arguments cannot passed interface mocks." the mock created interface have default constructor because interfaces don't have constructor. remember mockin
Read more

python - malformed header from script index.py Bad header -

-
i want run python code in apache2(ubuntu 14.04) server. have followed these steps , getting error: step 1: configuration 1: have created directory , file under /var/www/cgi-bin configuration 2 : have edited /etc/apache2/sites-available/000-default.conf alias /cgi-bin /var/www/cgi-bin <directory "/var/www/cgi-bin"> options indexes followsymlinks execcgi addhandler cgi-script .cgi .py allow </directory> <directory /var/www/cgi-bin> options </directory> step 2: and python script is: index.py #!/usr/bin/env python import cgi; import cgitb;cgitb.enable() print "content-type: text/plain\n" print "<b>hello python</b>" step 3: when ran through chrome browser using: url : http://localhost/cgi-bin/index.py step 4: i getting error in error-log malformed header script 'index.py': bad header: hello python you should end header \r\n, must print out yet \r\n signal body coming. (i
Read more