php - Assigning autonumber to HTML form entry -


i have searched everywhere, nothing find seems solve this. have html web form (in php document) writes data csv file, , below form table filters csv data in based on key word. have no problems existing code part. however, need have auto-number function assigns number each form. need on start. i'm still relatively new coding, great. edit: here code use write data csv file.

if($_post['formsubmit'] == "submit") {     $fs = fopen("fixturerequests.csv","a");     fwrite($fs,$varfixnum . ", " . $varrequester . ", " . $vardept . ", " . $varsupervisor . ", " . $vardesc . ", " . $varparts . ", " . $varwc . ", " . $varaddinfo . ", " . $vardatereq . ", " . $vardateneed . ", " .$varstatus . "\n");     fclose($fs);      header("location: successfullysubmitted.php");     exit; }

any guidance excellent. thank you.

you can use function

function next_available_form_id(){      $rows = file('fixturerequests.csv');  //put our csv file array      if(empty($rows)) return 1;            //if our csv empty start 1      $data = str_getcsv(array_pop($rows)); //array_pop gets last row      return $data[0]+1;            //we first field , add 1                                   //just use field store form number                                    //e.g if store form number in                                     //4th field replace $data[0] $data[3]  }

based on code provided can use function provided next form_id before storing in csv file.just make modification code after opening csv file :

$fs = fopen("fixturerequests.csv","a"); $form_id=next_available_form_id();  //add next available id  //and insert $form_id first field in csv file   fwrite($form_id,$fs,$varfixnum . ", " . $varrequester . ", " . $vardept . ", " . $varsupervisor . ", " . $vardesc . ", " . $varparts . ", " . $varwc . ", " . $varaddinfo . ", " . $vardatereq . ", " . $vardateneed . ", " .$varstatus . "\n");

notice: of course since csv have not have form_id first field should either create csv file scratch or add form numbers in existing records.in example use awk that:

  awk '{printf "%d,%s\n", nr, $0}' < fixturerequests.csv

Comments

Post a Comment

Popular posts from this blog

jOOQ update returning clause with Oracle -

according http://www.jooq.org/doc/3.8/manual/sql-building/sql-statements/update-statement/ jooq doesn't support returning clause in update statements databases except firebird , postgres. does know, still correct oracle jooq? according oracle's documentation, oracle db supports returning clase delete, insert, or update statements. incorrect manual you're right - manual wrong , should fixed: https://github.com/jooq/jooq/issues/5470 single row update returning jooq 3.8 added support single row update .. returning statements. internally, uses callablestatement , pl/sql block of form: begin update "my_table" set "my_table"."column" = 'xyz' "my_table"."id" = 1 returning "my_table"."id", "my_table"."column" ?, ?; ? := sql%rowcount; end; the relevant issue is: https://github.com/jooq/jooq/issues/5190 multi row update returning a...
Read more

java - Warning equals/hashCode on @Data annotation lombok with inheritance -

i have entity inherits other. on other hand, i'm using lombok project reduce boilerplate code, put @data annotation. annotation @data inheritance produces next warning: generating equals/hashcode implementation without call superclass, though class not extend java.lang.object. if intentional, add '@equalsandhashcode(callsuper=false)' type. is advisable add annotation @equalsandhashcode (callsuper = true) or @equalsandhashcode (callsuper = false) ? if not added, 1 callsuper=false or callsuper=true ? the default value false . 1 if don't specify , ignore warning. yes, recommended add @equalsandhashcode annotation on @data annotated classes extend else object. cannot tell if need true or false , depends on class hierarchy, , need examined on case-by-case basis. however, project or package, can configure in lombok.config call super methods if not direct subclass of object. lombok.equalsandhashcode.callsuper = call for configuration system ...
Read more

java - BasicPathUsageException: Cannot join to attribute of basic type -

i using java 8 jpa (hibernate 5.2.1). have clause works perfectly, until introduce clause make use foreign key table values too. i getting following error: basicpathusageexception: cannot join attribute of basic type i think problem related fact have join table, , not sure how create join using join table. employee - employee_category - category model (employee.java): @manytomany(cascade = cascadetype.all, fetch=fetchtype.eager) @jointable ( name="employee_category", joincolumns={ @joincolumn(name="emp_id", referencedcolumnname="id") }, inversejoincolumns={ @joincolumn(name="cat_id", referencedcolumnname="id") } ) private set<category> categories; model (category.java): @id private string id; jpa when introduce following code, fails error above (i think problem new piece of code): join<t, category> category = from.join("id"); predicates.add(criteriabuilder.like(category....
Read more