diff --git "a/\345\262\221\346\230\245\346\237\263/2022.5.11-PHP\344\270\211\351\242\230\344\275\234\344\270\232.md" "b/\345\262\221\346\230\245\346\237\263/2022.5.11-PHP\344\270\211\351\242\230\344\275\234\344\270\232.md"
new file mode 100644
index 0000000000000000000000000000000000000000..a447b358902cdb0370eb545fd7d34f503ddb217f
--- /dev/null
+++ "b/\345\262\221\346\230\245\346\237\263/2022.5.11-PHP\344\270\211\351\242\230\344\275\234\344\270\232.md"
@@ -0,0 +1,33 @@
+```php
+
+<?php
+$a=2;
+$b=2;
+$c=5;
+if ($a*$a+$b*$b=$c*$c){
+    echo "是三角形";
+}else{
+    echo "不是三角形";
+}
+```
+
+```php
+<?php
+$sum=1;
+$i=21;
+if ($i<=20){
+    echo $sum=$i;
+}else{
+    echo $sum=($i-20)*1.5+20;
+}
+```
+
+```php
+<?php
+
+for($i<=10;$i>=1;$i--){
+    echo $i;
+}
+
+```
+