TODO write content
import java.io.File; import java.io.IOException;
GROCERIES

Warning: Attempt to read property "num_rows" on bool in /home/hguywi5/public_html/grocery.php on line 70
task1 is empty
Warning: Attempt to read property "num_rows" on bool in /home/hguywi5/public_html/grocery.php on line 83
task2 is empty
Warning: Attempt to read property "num_rows" on bool in /home/hguywi5/public_html/grocery.php on line 96
task3 is empty
Warning: Attempt to read property "num_rows" on bool in /home/hguywi5/public_html/grocery.php on line 109
task4 is empty
Warning: Attempt to read property "num_rows" on bool in /home/hguywi5/public_html/grocery.php on line 122
task5 is empty
Warning: Attempt to read property "num_rows" on bool in /home/hguywi5/public_html/grocery.php on line 135
task6 is empty
Warning: Attempt to read property "num_rows" on bool in /home/hguywi5/public_html/grocery.php on line 148
task7 is empty
Warning: Attempt to read property "num_rows" on bool in /home/hguywi5/public_html/grocery.php on line 161
task8 is empty
Warning: Attempt to read property "num_rows" on bool in /home/hguywi5/public_html/grocery.php on line 174
task9 is empty
Warning: Attempt to read property "num_rows" on bool in /home/hguywi5/public_html/grocery.php on line 187
task10 is empty
Warning: Attempt to read property "num_rows" on bool in /home/hguywi5/public_html/grocery.php on line 200
task11 is empty
Warning: Attempt to read property "num_rows" on bool in /home/hguywi5/public_html/grocery.php on line 213
task12 is empty
Warning: Undefined variable $td_checkbox1 in /home/hguywi5/public_html/grocery.php on line 377
>
[clear]
Warning: Undefined variable $td_checkbox2 in /home/hguywi5/public_html/grocery.php on line 388
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Warning: Undefined variable $td_checkbox3 in /home/hguywi5/public_html/grocery.php on line 399
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Warning: Undefined variable $td_checkbox4 in /home/hguywi5/public_html/grocery.php on line 410
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Warning: Undefined variable $td_checkbox5 in /home/hguywi5/public_html/grocery.php on line 421
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Warning: Undefined variable $td_checkbox6 in /home/hguywi5/public_html/grocery.php on line 432
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[clear]
Warning: Undefined variable $td_checkbox7 in /home/hguywi5/public_html/grocery.php on line 443
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[clear]
Warning: Undefined variable $td_checkbox8 in /home/hguywi5/public_html/grocery.php on line 454
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Warning: Undefined variable $td_checkbox9 in /home/hguywi5/public_html/grocery.php on line 465
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Warning: Undefined variable $td_checkbox10 in /home/hguywi5/public_html/grocery.php on line 476
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Warning: Undefined variable $td_checkbox11 in /home/hguywi5/public_html/grocery.php on line 487
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[clear]
Warning: Undefined variable $td_checkbox12 in /home/hguywi5/public_html/grocery.php on line 498
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[clear]































//notes on warning problem //isset($lookup_table[$key]) will return false if $lookup_table[$key] is null ... //array_key_exists() will return true if the key exists but its value is null. // If key exists, return value, otherwise return null. //$a=array("Volvo"=>"XC90","BMW"=>"X5"); //if (array_key_exists("Volvo",$a)) //it is common to check for something's existence, and if it does'nt exist, use a default value. //The coalesce, or ??, operator is added, which returns the result of its first operand if it exists and is not NULL, or else its second operand. //$_GET['mykey'] ?? "" will not raise an E_NOTICE //$username = $_GET['user'] ?? 'nobody'; // equivalent to: $username = isset($_GET['user']) ? $_GET['user'] : 'nobody'; // variable $color is "red" if $color does not exist or is null // echo $color = $color ?? "red";