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Use same part of a variable for two different things

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Use same part of a variable for two different things

 
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  #1
Jul 23rd, 2008
I'm trying to decode a variable the user inputs into two different things, depending on the input.

Here it is in context:

User inputs 591P1001; 59 is the year, 1 is the series, P is the assembly plant and 1001 is the CUN.

Now on the same page, if the user inputs 814P1001, the information is decode as 8 is the engine, 1 is the series, 4 is the year, P is the assembly plant and 1001 is the CUN.

How can I use the same variable I've defined as $decode=trim($_POST['VIN']) to display different things based on the input. Right now it works fine for the first example but displays nothing when the second example is input.

Here is my code:
PHP Syntax (Toggle Plain Text) 
  1. <?php
  2.  
  3. $decode=trim($_POST['VIN']);
  4.  
  5. // 1959 - 1963 Pontiac Begins
  6.  
  7. $ModelYear=substr($decode,1,2);
  8. 		if ($ModelYear >= 59 && $ModelYear <= 63){{
  9. 					echo "";
  10. }
  11.  
  12. $Series=substr($decode,0,1);
  13. $ModelYear=substr($decode,1,2);
  14. 		if ($Series == "1" && ($ModelYear >= 59 && $ModelYear <= 60)){
  15. 					echo "$Series = Catalina<br />";
  16. 	} elseif ($Series == "1" && ($ModelYear >= 61 && $ModelYear <= 63)){
  17. 					echo "$Series = Tempest<br />";
  18. 	} elseif ($Series == "2" && $ModelYear == "63"){
  19. 					echo "$Series = Lemans<br />";
  20. 	} elseif ($Series == "3" && $ModelYear == "60"){
  21. 					echo "$Series = Ventura<br />";
  22. 	} elseif ($Series == "3" && ($ModelYear >= 61 && $ModelYear <= 63)){
  23. 					echo "$Series = Catalina<br />";
  24. 	} elseif ($Series == "4" && ($ModelYear >= 59 && $ModelYear <= 60)){
  25. 					echo "$Series = Star Chief<br />";
  26. 	} elseif ($Series == "5" && $ModelYear == "61"){
  27. 					echo "$Series = Ventura<br />";
  28. 	} elseif ($Series == "6" && ($ModelYear >= 61 && $ModelYear <= 63)){
  29. 					echo "$Series = Star Chief<br />";
  30. 	} elseif ($Series == "7" && ($ModelYear >= 59 && $ModelYear <= 62)){
  31. 					echo "$Series = Bonneville Safari<br />";
  32. 	} elseif ($Series == "8" && ($ModelYear >= 59 && $ModelYear <= 63)){
  33. 					echo "$Series = Bonneville<br />";
  34. 	} elseif ($Series == "9" && ($ModelYear >= 62 && $ModelYear <= 63)){
  35. 					echo "$Series = Grand Prix<br />";
  36. 	} else {
  37. 					echo "Pontiac didn't offer this series in 19$ModelYear. Please check your VIN and try again.<br />";
  38. }
  39.  
  40. $ModelYear=substr($decode,1,2);
  41. 		if ($ModelYear >= 59 && $ModelYear <= 63){
  42. 					echo "$ModelYear = 19$ModelYear<br />";
  43. 	} else {
  44. 					echo "Invalid model year. Please check your VIN and try again.<br />";
  45. }
  46.  
  47. $AssemblyPlant=strtoupper(substr($decode,3,1));
  48. 		if ($AssemblyPlant == "A" && $ModelYear == "59"){
  49. 					echo "$AssemblyPlant = Atlanta, GA<br />";
  50. 	} elseif ($AssemblyPlant == "A" && ($ModelYear >= 60 && $ModelYear <= 63)){
  51. 					echo "$AssemblyPlant = Arlington, TX<br />";
  52. 	} elseif ($AssemblyPlant == "C" && $ModelYear == "59"){
  53. 					echo "$AssemblyPlant = Southgate, CA<br />";
  54. 	} elseif ($AssemblyPlant == "D" && ($ModelYear >= 60 && $ModelYear <= 63)){
  55. 					echo "$AssemblyPlant = Doraville, GA<br />";
  56. 	} elseif ($AssemblyPlant == "E" && ($ModelYear >= 60 && $ModelYear <= 61)){
  57. 					echo "$AssemblyPlant = Euclid, OH<br />";
  58. 	} elseif ($AssemblyPlant == "F" && $ModelYear == "59"){
  59. 					echo "$AssemblyPlant = Framingham, MA<br />";
  60. 	} elseif ($AssemblyPlant == "K" && ($ModelYear >= 59 && $ModelYear <= 63)){
  61. 					echo "$AssemblyPlant = Kansas City, KS<br />";
  62. 	} elseif ($AssemblyPlant == "L" && ($ModelYear >= 59 && $ModelYear <= 63)){
  63. 					echo "$AssemblyPlant = Linden, NJ<br />";
  64. 	} elseif ($AssemblyPlant == "P" && ($ModelYear >= 59 && $ModelYear <= 63)){
  65. 					echo "$AssemblyPlant = Pontiac, MI<br />";
  66. 	} elseif ($AssemblyPlant == "S" && ($ModelYear >= 60 && $ModelYear <= 63)){
  67. 					echo "$AssemblyPlant = Southgate, CA<br />";
  68. 	} elseif ($AssemblyPlant == "T" && $ModelYear == "59"){
  69. 					echo "$AssemblyPlant = Arlington, TX<br />";
  70. 	} elseif ($AssemblyPlant == "W" && ($ModelYear >= 59 && $ModelYear <= 63)){
  71. 					echo "$AssemblyPlant = Wilmington, DE<br />";
  72. 	} else {
  73. 					echo "Pontiac's weren't built at this plant in 19$ModelYear. Please check your VIN and try again.<br />";
  74. }
  75.  
  76. $ProductionNumber=substr($decode,4,6);
  77. 		if (is_Numeric($ProductionNumber)){
  78. 					echo "$ProductionNumber = ";
  79. 					echo $ProductionNumber - 1001;
  80. 					echo "th Pontiac scheduled for production<br />";
  81. 	} else {
  82. 					echo "Invalid production number. Please check your VIN and try again.<br />";
  83. }
  84.  
  85. // 1959 - 1963 Pontiac Ends
  86.  
  87. // 1964 Pontiac Begins
  88.  
  89. $ModelYear=substr($decode,2,1);
  90. 		} elseif ($ModelYear == "4"){{
  91. 					echo "";
  92. }
  93. $Engine=substr($decode,0,1);
  94. 		if ($Engine == "6"){
  95. 					echo "$Engine = 6-cylinder<br />";
  96. 	} elseif ($Engine == "8"){
  97. 					echo "$Engine = 8-cylinder<br />";
  98. 	} else {
  99. 					echo "Incorrect engine code. Please check your VIN and try again.<br />";
  100. }
  101.  
  102. $Series=substr($decode,1,1);
  103. 		if ($Series == "0"){
  104. 					echo "$Series = Tempest<br />";
  105. 	} elseif ($Series == "1"){
  106. 					echo "$Series = Tempest Custom<br />";
  107. 	} elseif ($Series == "2"){
  108. 					echo "$Series = Lemans<br />";
  109. 	} elseif ($Series == "3"){
  110. 					echo "$Series = Catalina<br />";
  111. 	} elseif ($Series == "6"){
  112. 					echo "$Series = Star Chief<br />";
  113. 	} elseif ($Series == "8"){
  114. 					echo "$Series = Bonneville<br />";
  115. 	} elseif ($Series == "9"){
  116. 					echo "$Series = Grand Prix<br />";
  117. 	} else {
  118. 					echo "Pontiac didn't offer this series in 196$ModelYear. Please check your VIN and try again.<br />";
  119. }
  120.  
  121. $ModelYear=substr($decode,2,1);
  122. 		if ($ModelYear == "4"){
  123. 					echo "$ModelYear = 196$ModelYear<br />";
  124. 	} else {
  125. 					echo "Incorrect model year. Please check your VIN and try again.<br />";
  126. }
  127.  
  128. $AssemblyPlant=strtoupper(substr($decode,3,1));
  129. 		if ($AssemblyPlant == "A"){
  130. 					echo "$AssemblyPlant = Arlington, TX<br />";
  131. 	} elseif ($AssemblyPlant == "D"){
  132. 					echo "$AssemblyPlant = Doraville, GA<br />";
  133. 	} elseif ($AssemblyPlant == "F"){
  134. 					echo "$AssemblyPlant = Fremont, OH<br />";
  135. 	} elseif ($AssemblyPlant == "K"){
  136. 					echo "$AssemblyPlant = Kansas City, KS<br />";
  137. 	} elseif ($AssemblyPlant == "L"){
  138. 					echo "$AssemblyPlant = Linden, NJ<br />";
  139. 	} elseif ($AssemblyPlant == "P"){
  140. 					echo "$AssemblyPlant = Pontiac, MI<br />";
  141. 	} elseif ($AssemblyPlant == "S"){
  142. 					echo "$AssemblyPlant = Southgate, CA<br />";
  143. 	} else {
  144. 					echo "Pontiac's weren't built at this plant in 196$ModelYear. Please check your VIN and try again.<br />";
  145. }
  146.  
  147. $ProductionNumber=substr($decode,4,6);
  148. 		if (is_Numeric($ProductionNumber)){
  149. 					echo "$ProductionNumber = ";
  150. 					echo $ProductionNumber - 1001;
  151. 					echo "th Pontiac scheduled for production<br />";
  152. 	} else {
  153. 					echo "Invalid production number. Please check your VIN and try again.<br />";
  154. }
  155. }
  156. // 1964 Pontiac Ends
  157. ?>

Thanks for the help,
Arthur
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Re: Use same part of a variable for two different things

 
0
  #2
Jul 24th, 2008
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•
•
•
Originally Posted by forwardlookguy View Post
I'm trying to decode a variable the user inputs into two different things, depending on the input.

Here it is in context:

User inputs 591P1001; 59 is the year, 1 is the series, P is the assembly plant and 1001 is the CUN.

Now on the same page, if the user inputs 814P1001, the information is decode as 8 is the engine, 1 is the series, 4 is the year, P is the assembly plant and 1001 is the CUN.

How can I use the same variable I've defined as $decode=trim($_POST['VIN']) to display different things based on the input. Right now it works fine for the first example but displays nothing when the second example is input.

Here is my code:
PHP Syntax (Toggle Plain Text) 
  1. <?php
  2.  
  3. $decode=trim($_POST['VIN']);
  4.  
  5. // 1959 - 1963 Pontiac Begins
  6.  
  7. $ModelYear=substr($decode,1,2);
  8. 		if ($ModelYear >= 59 && $ModelYear <= 63){{
  9. 					echo "";
  10. }
  11.  
  12. $Series=substr($decode,0,1);
  13. $ModelYear=substr($decode,1,2);
  14. 		if ($Series == "1" && ($ModelYear >= 59 && $ModelYear <= 60)){
  15. 					echo "$Series = Catalina<br />";
  16. 	} elseif ($Series == "1" && ($ModelYear >= 61 && $ModelYear <= 63)){
  17. 					echo "$Series = Tempest<br />";
  18. 	} elseif ($Series == "2" && $ModelYear == "63"){
  19. 					echo "$Series = Lemans<br />";
  20. 	} elseif ($Series == "3" && $ModelYear == "60"){
  21. 					echo "$Series = Ventura<br />";
  22. 	} elseif ($Series == "3" && ($ModelYear >= 61 && $ModelYear <= 63)){
  23. 					echo "$Series = Catalina<br />";
  24. 	} elseif ($Series == "4" && ($ModelYear >= 59 && $ModelYear <= 60)){
  25. 					echo "$Series = Star Chief<br />";
  26. 	} elseif ($Series == "5" && $ModelYear == "61"){
  27. 					echo "$Series = Ventura<br />";
  28. 	} elseif ($Series == "6" && ($ModelYear >= 61 && $ModelYear <= 63)){
  29. 					echo "$Series = Star Chief<br />";
  30. 	} elseif ($Series == "7" && ($ModelYear >= 59 && $ModelYear <= 62)){
  31. 					echo "$Series = Bonneville Safari<br />";
  32. 	} elseif ($Series == "8" && ($ModelYear >= 59 && $ModelYear <= 63)){
  33. 					echo "$Series = Bonneville<br />";
  34. 	} elseif ($Series == "9" && ($ModelYear >= 62 && $ModelYear <= 63)){
  35. 					echo "$Series = Grand Prix<br />";
  36. 	} else {
  37. 					echo "Pontiac didn't offer this series in 19$ModelYear. Please check your VIN and try again.<br />";
  38. }
  39.  
  40. $ModelYear=substr($decode,1,2);
  41. 		if ($ModelYear >= 59 && $ModelYear <= 63){
  42. 					echo "$ModelYear = 19$ModelYear<br />";
  43. 	} else {
  44. 					echo "Invalid model year. Please check your VIN and try again.<br />";
  45. }
  46.  
  47. $AssemblyPlant=strtoupper(substr($decode,3,1));
  48. 		if ($AssemblyPlant == "A" && $ModelYear == "59"){
  49. 					echo "$AssemblyPlant = Atlanta, GA<br />";
  50. 	} elseif ($AssemblyPlant == "A" && ($ModelYear >= 60 && $ModelYear <= 63)){
  51. 					echo "$AssemblyPlant = Arlington, TX<br />";
  52. 	} elseif ($AssemblyPlant == "C" && $ModelYear == "59"){
  53. 					echo "$AssemblyPlant = Southgate, CA<br />";
  54. 	} elseif ($AssemblyPlant == "D" && ($ModelYear >= 60 && $ModelYear <= 63)){
  55. 					echo "$AssemblyPlant = Doraville, GA<br />";
  56. 	} elseif ($AssemblyPlant == "E" && ($ModelYear >= 60 && $ModelYear <= 61)){
  57. 					echo "$AssemblyPlant = Euclid, OH<br />";
  58. 	} elseif ($AssemblyPlant == "F" && $ModelYear == "59"){
  59. 					echo "$AssemblyPlant = Framingham, MA<br />";
  60. 	} elseif ($AssemblyPlant == "K" && ($ModelYear >= 59 && $ModelYear <= 63)){
  61. 					echo "$AssemblyPlant = Kansas City, KS<br />";
  62. 	} elseif ($AssemblyPlant == "L" && ($ModelYear >= 59 && $ModelYear <= 63)){
  63. 					echo "$AssemblyPlant = Linden, NJ<br />";
  64. 	} elseif ($AssemblyPlant == "P" && ($ModelYear >= 59 && $ModelYear <= 63)){
  65. 					echo "$AssemblyPlant = Pontiac, MI<br />";
  66. 	} elseif ($AssemblyPlant == "S" && ($ModelYear >= 60 && $ModelYear <= 63)){
  67. 					echo "$AssemblyPlant = Southgate, CA<br />";
  68. 	} elseif ($AssemblyPlant == "T" && $ModelYear == "59"){
  69. 					echo "$AssemblyPlant = Arlington, TX<br />";
  70. 	} elseif ($AssemblyPlant == "W" && ($ModelYear >= 59 && $ModelYear <= 63)){
  71. 					echo "$AssemblyPlant = Wilmington, DE<br />";
  72. 	} else {
  73. 					echo "Pontiac's weren't built at this plant in 19$ModelYear. Please check your VIN and try again.<br />";
  74. }
  75.  
  76. $ProductionNumber=substr($decode,4,6);
  77. 		if (is_Numeric($ProductionNumber)){
  78. 					echo "$ProductionNumber = ";
  79. 					echo $ProductionNumber - 1001;
  80. 					echo "th Pontiac scheduled for production<br />";
  81. 	} else {
  82. 					echo "Invalid production number. Please check your VIN and try again.<br />";
  83. }
  84.  
  85. // 1959 - 1963 Pontiac Ends
  86.  
  87. // 1964 Pontiac Begins
  88.  
  89. $ModelYear=substr($decode,2,1);
  90. 		} elseif ($ModelYear == "4"){{
  91. 					echo "";
  92. }
  93. $Engine=substr($decode,0,1);
  94. 		if ($Engine == "6"){
  95. 					echo "$Engine = 6-cylinder<br />";
  96. 	} elseif ($Engine == "8"){
  97. 					echo "$Engine = 8-cylinder<br />";
  98. 	} else {
  99. 					echo "Incorrect engine code. Please check your VIN and try again.<br />";
  100. }
  101.  
  102. $Series=substr($decode,1,1);
  103. 		if ($Series == "0"){
  104. 					echo "$Series = Tempest<br />";
  105. 	} elseif ($Series == "1"){
  106. 					echo "$Series = Tempest Custom<br />";
  107. 	} elseif ($Series == "2"){
  108. 					echo "$Series = Lemans<br />";
  109. 	} elseif ($Series == "3"){
  110. 					echo "$Series = Catalina<br />";
  111. 	} elseif ($Series == "6"){
  112. 					echo "$Series = Star Chief<br />";
  113. 	} elseif ($Series == "8"){
  114. 					echo "$Series = Bonneville<br />";
  115. 	} elseif ($Series == "9"){
  116. 					echo "$Series = Grand Prix<br />";
  117. 	} else {
  118. 					echo "Pontiac didn't offer this series in 196$ModelYear. Please check your VIN and try again.<br />";
  119. }
  120.  
  121. $ModelYear=substr($decode,2,1);
  122. 		if ($ModelYear == "4"){
  123. 					echo "$ModelYear = 196$ModelYear<br />";
  124. 	} else {
  125. 					echo "Incorrect model year. Please check your VIN and try again.<br />";
  126. }
  127.  
  128. $AssemblyPlant=strtoupper(substr($decode,3,1));
  129. 		if ($AssemblyPlant == "A"){
  130. 					echo "$AssemblyPlant = Arlington, TX<br />";
  131. 	} elseif ($AssemblyPlant == "D"){
  132. 					echo "$AssemblyPlant = Doraville, GA<br />";
  133. 	} elseif ($AssemblyPlant == "F"){
  134. 					echo "$AssemblyPlant = Fremont, OH<br />";
  135. 	} elseif ($AssemblyPlant == "K"){
  136. 					echo "$AssemblyPlant = Kansas City, KS<br />";
  137. 	} elseif ($AssemblyPlant == "L"){
  138. 					echo "$AssemblyPlant = Linden, NJ<br />";
  139. 	} elseif ($AssemblyPlant == "P"){
  140. 					echo "$AssemblyPlant = Pontiac, MI<br />";
  141. 	} elseif ($AssemblyPlant == "S"){
  142. 					echo "$AssemblyPlant = Southgate, CA<br />";
  143. 	} else {
  144. 					echo "Pontiac's weren't built at this plant in 196$ModelYear. Please check your VIN and try again.<br />";
  145. }
  146.  
  147. $ProductionNumber=substr($decode,4,6);
  148. 		if (is_Numeric($ProductionNumber)){
  149. 					echo "$ProductionNumber = ";
  150. 					echo $ProductionNumber - 1001;
  151. 					echo "th Pontiac scheduled for production<br />";
  152. 	} else {
  153. 					echo "Invalid production number. Please check your VIN and try again.<br />";
  154. }
  155. }
  156. // 1964 Pontiac Ends
  157. ?>

Thanks for the help,
Arthur

To make the code a bit more lean, you probably want to look into the "factory method" which is a programming design pattern.

http://en.wikipedia.org/wiki/Factory_method_pattern

The simple factory method in PHP is to use an array instead of a switch or if else in a comparison. (it isn't truly a factory method pattern, but it inherits the concept).

PHP Syntax (Toggle Plain Text) 
  1. $models = array(
  2.   '59'=>'Catalina', 
  3.   '60'=>'Catalina',
  4.   '61'=>'Tempest',
  5.   '62'=>'Tempest',
  6.   '63'=>'Tempest'
  7. ....
  8. );

That way instead of the if else block, you can just the array index:

PHP Syntax (Toggle Plain Text) 
  1. $model = $models[ substr($decode,1,2) ];

BTW: where is the second example?
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