Q:

# Alphabet Triangle Pattern in Php

Some different alphabet triangle patterns using range() function in PHP are shown below.

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Pattern 1

``````<?php
\$alpha = range('A', 'Z');
for(\$i=0; \$i<5; \$i++){
for(\$j=5; \$j>\$i; \$j--){
echo \$alpha[\$i];
}
echo "<br>";
}
?>  ``````

Output:

Pattern 2

``````<?php
\$alpha = range('A', 'Z');
for(\$i=0; \$i<5; \$i++){
for(\$j=0; \$j<=\$i; \$j++){
echo \$alpha[\$i];
}
echo "<br>";
}
?>  ``````

Output:

Pattern 3

``````<?php
\$alpha = range('A', 'Z');
for(\$i=0; \$i<5; \$i++){
for(\$j=0; \$j<=\$i; \$j++){
echo \$alpha[\$j];
}
echo "<br>";
}
?>  ``````

Output:

Pattern 4

``````<?php
\$alpha = range('A', 'Z');
for(\$i=0; \$i<5; \$i++){
for(\$j=4; \$j>=\$i; \$j--){
echo \$alpha[\$j];
}
echo "<br>";
}
?>  ``````

Output:

Pattern 5

``````<?php
\$alpha = range('A', 'Z');
for (\$i=5; \$i>=1; \$i--) {
for(\$j=0; \$j<=\$i; \$j++) {
echo ' ';
}
\$j--;
for (\$k=0; \$k<=(5-\$j); \$k++) {
echo \$alpha[\$k];
}
echo "<br>\n";
}
?>  ``````

Output:

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