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<?php function isPhoneNumber($number) { return preg_match("/^\+[0-9]{2}\.[0-9]{10}$/", $phone); } var_dump(isPhoneNumber("+44.1202535689")); var_dump(isPhoneNumber("aaa+44.1202535689aa")); var_dump(isPhoneNumber("foo"));
Output for 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Warning: Undefined variable $phone in /in/Bknp5 on line 4 Deprecated: preg_match(): Passing null to parameter #2 ($subject) of type string is deprecated in /in/Bknp5 on line 4 int(0) Warning: Undefined variable $phone in /in/Bknp5 on line 4 Deprecated: preg_match(): Passing null to parameter #2 ($subject) of type string is deprecated in /in/Bknp5 on line 4 int(0) Warning: Undefined variable $phone in /in/Bknp5 on line 4 Deprecated: preg_match(): Passing null to parameter #2 ($subject) of type string is deprecated in /in/Bknp5 on line 4 int(0)
Output for 8.0.0 - 8.0.30
Warning: Undefined variable $phone in /in/Bknp5 on line 4 int(0) Warning: Undefined variable $phone in /in/Bknp5 on line 4 int(0) Warning: Undefined variable $phone in /in/Bknp5 on line 4 int(0)
Output for 5.0.4 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.7 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.0 - 7.2.33, 7.3.12 - 7.3.31, 7.4.0 - 7.4.33
Notice: Undefined variable: phone in /in/Bknp5 on line 4 int(0) Notice: Undefined variable: phone in /in/Bknp5 on line 4 int(0) Notice: Undefined variable: phone in /in/Bknp5 on line 4 int(0)
Output for 7.3.32 - 7.3.33
int(0) int(0) int(0)
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.3
Notice: Undefined variable: phone in /in/Bknp5 on line 4 int(0) Notice: Undefined variable: phone in /in/Bknp5 on line 4 int(0) Notice: Undefined variable: phone in /in/Bknp5 on line 4 int(0)
preferences:
227.23 ms | 402 KiB | 316 Q