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| Newsgroups | alt.php.sql |
|---|---|
| Date | 2020-05-04 01:33 -0700 |
| References | <7f7c9834-7067-4985-9115-07f5a98f9f69@googlegroups.com> <6d01fd9a-4116-4d76-8aa4-9ba6303272fb@googlegroups.com> |
| Message-ID | <eaac2039-fefc-4b28-ad50-e2be126143af@googlegroups.com> (permalink) |
| Subject | PHP class based database system with some sql features(some queries) |
| From | kristjan1291983@gmail.com |
SQL allowed queries:
select * from classa;
select a from classa;
select * from classa join classb on (classa.a=classb.c);
select * from classa where a=abc and b=abcd;
select * from classa where a=abc;
databasesystem.php:
<?php
class Dbobj {
function getNameOfClass()
{
return static::class;
}
}
class Easydbsystem {
var $dbtables;
function gettime() {
return date("d.m.Y H:i:s");
}
function saveobjecttables() {
$tabls=$this->dbtables;
for($i=0; $i<count($tabls); $i++) {
$oc=$tabls[$i][0]->getNameOfClass();
if (file_exists($oc.".edb")) {
unlink($oc.".edb");
}
$b=serialize($tabls[$i]);
$fh = fopen($oc.".edb", "a");
fwrite($fh, $b);
fclose($fh);
chmod($oc.".edb", 0700);
}
return true;
}
function saveobjecttable($objcl) {
$tabls=$this->dbtables;
$obclindex=-1;
for($i=0; $i<count($tabls); $i++) {
if($tabls[$i][0]->getNameOfClass()==$objcl) {
$obclindex=$i;
break;
}
}
if (file_exists($objcl.".edb")) {
unlink($objcl.".edb");
}
$b=serialize($tabls[$obclindex]);
$fh = fopen($objcl.".edb", "a");
fwrite($fh, $b);
fclose($fh);
chmod($objcl.".edb", 0700);
return true;
}
function makearrayunique($array){
$duplicate_keys = array();
$tmp = array();
foreach ($array as $key => $val){
if (is_object($val))
$val = (array)$val;
if (!in_array($val, $tmp))
$tmp[] = $val;
else $duplicate_keys[] = $key;
}
foreach ($duplicate_keys as $key)
unset($array[$key]);
return $array;
}
function deleteduplicates() {
$ob=$this->dbtables;
for($i=0; $i<count($ob); $i++) {
$o12=$this->makearrayunique($ob[$i]);
$ob[$i]=$o12;
}
$this->saveobjecttables();
}
function deleteduplicatescl($objcl) {
$ob=$this->dbtables;
$obclindex=-1;
for($i=0; $i<count($ob); $i++) {
if($ob[$i][0]->getNameOfClass()==$objcl) {
$obclindex=$i;
break;
}
}
$o12=$this->makearrayunique($ob[$obclindex]);
$ob[$obclindex]=$o12;
$this->dbtables=$ob;
$this->saveobjecttable($objcl);
}
function loadobjecttables() {
$dbtables = array();
foreach (glob("*.edb") as $file) {
$path_parts = pathinfo($file);
if(!class_exists($path_parts['filename'])) {
continue;
}
$file1 = file_get_contents($file, true);
$dbtables[] = unserialize($file1);
}
$this->dbtables=$dbtables;
}
function deleteotable($otabname) {
if (file_exists($otabname.".edb")) {
unlink($otabname.".edb");
}
$this->loadobjecttables();
}
function insertobject($obj) {
$this->loadobjecttables();
$oclass=$obj->getNameOfClass();
$tabls=$this->dbtables;
$oarridx=-1;
for($i=0; $i<count($tabls); $i++) {
if($tabls[$i][0]->getNameOfClass()==$oclass) {
$oarridx=$i;
}
}
if($oarridx==-1) return false;
$tabls[$oarridx][]=$obj;
unlink($tabls[$oarridx][0]->getNameOfClass().".edb");
$b=serialize($tabls[$oarridx]);
$fh = fopen($tabls[$oarridx][0]->getNameOfClass().".edb", "a");
fwrite($fh, $b);
fclose($fh);
chmod($tabls[$oarridx][0]->getNameOfClass().".edb", 0700);
}
function objectClassestoarray($objectA,
$objectB) {
$new_object = array();
foreach($objectA as $property => $value) {
$new_object[$property]=$value;
}
foreach($objectB as $property => $value) {
$new_object[$property]=$value;
}
return $new_object;
}
function query($query) {
$this->loadobjecttables();
$ovars=array();
$objects=$this->dbtables;
for($i=0; $i<count($objects); $i++) {
$ovars[]=array_keys(get_object_vars($objects[$i][0]));
}
$mches=array();
$results=null;
$exitf=false;
for($i=0; $i<count($objects); $i++) {
if($exitf) break;
for($j=0; $j<count($ovars); $j++) {
if($exitf) break;
if(!class_exists($objects[$i][0]->getNameOfClass())) continue;
if(preg_match("/^select \* from ".$objects[$i][0]->getNameOfClass().";$/",$query)) {
$objectsList = [];
foreach ($objects[$i] as $obj) {
$objectsList[] = (array)$obj;
}
return $objectsList;
$exitf=true;
}
}
}
for($i=0; $i<count($objects); $i++) {
if($exitf) break;
for($j=0; $j<count($ovars); $j++) {
if($exitf) break;
if(!class_exists($objects[$i][0]->getNameOfClass())) continue;
if(preg_match("/^select ".$ovars[$i][$j]." from ".$objects[$i][0]->getNameOfClass().";$/",$query)) {
return array_column($objects[$i], $ovars[$i][$j]);
$exitf=true;
}
}
}
$outp=array();
for($i=0; $i<count($objects); $i++) {
if($exitf) break;
for($j=0; $j<count($ovars[$i]); $j++) {
if($exitf) break;
for($k=0; $k<count($objects); $k++) {
if($exitf) break;
for($l=0; $l<count($ovars[$k]); $l++) {
if($exitf) break;
if(!class_exists($objects[$i][0]->getNameOfClass())) continue;
if(!class_exists($objects[$k][0]->getNameOfClass())) continue;
if(preg_match("/^select \* from ".$objects[$i][0]->getNameOfClass()." join ".$objects[$k][0]->getNameOfClass().
" on \(".$objects[$i][0]->getNameOfClass()."\.".$ovars[$i][$j]."\=".$objects[$k][0]->getNameOfClass().
"\.".$ovars[$k][$l]."\);$/",$query)) {
for($ii=0; $ii<count($objects[$i]); $ii++) {
for($ii2=0; $ii2<count($objects[$k]); $ii2++) {
if($objects[$i][$ii]->{$ovars[$i][$j]}==$objects[$k][$ii2]->{$ovars[$k][$l]}) {
$oobj = $this->objectClassestoarray($objects[$i][$ii], $objects[$k][$ii2]);
$outp[]=$oobj;
}
}
}
$exitf=true;
}
}
}
}
}
for($k=0; $k<count($objects); $k++) {
if($exitf) break;
for($l=0; $l<count($ovars[$k]); $l++) {
if($exitf) break;
for($l2=0; $l2<count($ovars[$k]); $l2++) {
if($exitf) break;
if(!class_exists($objects[$k][0]->getNameOfClass())) continue;
if(preg_match("/^select \* from ".$objects[$k][0]->getNameOfClass()." where ".$ovars[$k][$l]."\=(.*) and ".$ovars[$k][$l2]."\=(.*);$/",$query, $matches)) {
for($ii2=0; $ii2<count($objects[$k]); $ii2++) {
if($objects[$k][$ii2]->{$ovars[$k][$l]}==$matches[1]&&$objects[$k][$ii2]->{$ovars[$k][$l2]}==$matches[2]) {
$oobj = (array)$objects[$k][$ii2];
$outp[]=$oobj;
}
}
$exitf=true;
}
}
}
}
for($k=0; $k<count($objects); $k++) {
if($exitf) break;
for($l=0; $l<count($ovars[$k]); $l++) {
if($exitf) break;
if(!class_exists($objects[$k][0]->getNameOfClass())) continue;
if(preg_match("/^select \* from ".$objects[$k][0]->getNameOfClass()." where ".$ovars[$k][$l]."\=(.*);$/",$query, $matches)) {
for($ii2=0; $ii2<count($objects[$k]); $ii2++) {
if($objects[$k][$ii2]->{$ovars[$k][$l]}==$matches[1]) {
$oobj = (array)$objects[$k][$ii2];
$outp[]=$oobj;
}
}
$exitf=true;
}
}
}
if(count($outp)>0) {
return $outp;
}
return $mches;
}
}
?>
Who wants me to add features to it, e-mail me. It will cost at least 100 $-s.
Kristjan Robam
372 6861327
kri st ja n 12 9 19 83 @ g ma il . c o m
Back to alt.php.sql | Previous | Next — Previous in thread | Next in thread | Find similar
Easy php db system, that saves data to files and needs only one file( itself) Kristjan Robam <robamman2020@hotmail.com> - 2020-03-20 12:28 -0700
Re: Easy relative php db system, that saves data to files and needs only one file( itself) Kristjan Robam <robamman2020@hotmail.com> - 2020-03-20 22:29 -0700
Easy object based relational php database system that saves data to files only needing 1 file (the system php file) Kristjan Robam <robamman2020@hotmail.com> - 2020-03-21 06:00 -0700
PHP class based database system with some sql features(some queries) kristjan1291983@gmail.com - 2020-05-04 01:33 -0700
Re: PHP class based database system with some sql features(some queries) "J.O. Aho" <user@example.net> - 2020-05-04 15:21 +0200
Re: PHP class based database system with some sql features(some queries) "J.O. Aho" <user@example.net> - 2020-05-04 17:29 +0200
Re: PHP class based database system with some sql features(some queries) kristjan1291983@gmail.com - 2020-05-05 02:45 -0700
Re: PHP class based database system with some sql features(some queries) kristjan1291983@gmail.com - 2020-05-05 08:01 -0700
Re: PHP class based database system with some sql features(some queries) "J.O. Aho" <user@example.net> - 2020-05-05 18:33 +0200
Re: PHP class based database system with some sql features(some queries) kristjan1291983@gmail.com - 2020-05-05 19:35 -0700
Re: PHP class based database system with some sql features(some queries) "J.O. Aho" <user@example.net> - 2020-05-05 18:19 +0200
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