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Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and a supportive community. Start your free trial today. # I'm stuck with that loop. :(

I had to make a loop print out the numbers 1 to 100.

• Create a FOR loop that displays each number from 1 to 100. Make sure that you DO NOT show 0 and you DO show 100.

which is that:

<?php \$facts = array( 57 => ' on Heinz ketchup bottles represents the number of varieties of pickles the company once had.', 2 => ' is the approximate hours a day Giraffes sleeps', 18 => ' is the average hours a Python sleeps per day', 10 => ' per cent of the world is left-handed.', 11 => ' Empire State Buildings, stacked one on top of the other, would be required to measure the Gulf of Mexico at its deepest point.', 98 => '% of the atoms in your body are replaced every year', 69 => ' is the largest number of recorded children born to one woman', );

for (\$fact = 1; \$fact <= 100; \$fact++){ echo \$fact; }

Here can anyone tell me why there's no s to \$fact? because the variable is \$facts not fact.

Here is what I can't figure out.

Use the function isset to test if the incremented value equals one of the keys in the \$facts array. If there is a key that matches, display the value AFTER the number.

index.php
```<?php
\$facts = array(
57 => ' on Heinz ketchup bottles represents the number of varieties of pickles the company once had.',
2 => ' is the approximate hours a day Giraffes sleeps',
18 => ' is the average hours a Python sleeps per day',
10 => ' per cent of the world is left-handed.',
11 => ' Empire State Buildings, stacked one on top of the other, would be required to measure the Gulf of Mexico at its deepest point.',
98 => '% of the atoms in your body are replaced every year',
69 => ' is the largest number of recorded children born to one woman',
);
for (\$fact = 1; \$fact <= 100; \$fact++) {
echo \$fact . if (isset(\$fact['']));
}
``` Something like this.

• echo the numbers 1 to 100
• then check if \$facts isset
• if it is, then print it's value
```<?php
for (\$i = 1; \$i <= 100; \$i++) {
echo \$i;
if (isset(\$facts[\$i])) {
echo \$facts[\$i];
}
}
```